Saturday, July 27, 2019
Commercial aircrafts (such as Boeing 787 Dream liner) for Airline Research Proposal
Commercial aircrafts (such as Boeing 787 Dream liner) for Airline Industry (such as Qatar Airways) - Research Proposal Example In this paper, the purpose is to present a sales proposal to one of the leading airline companies, Qatar airways on behalf of the Boeing Commercials. Boeing 787 Dream liner is one of the aircrafts that Boeing Commercials is fond of producing and one that has caused great excitement in the airline industry. Its development started in 2003, but it was not until 2009 that the first flight took off in an amazing way. The Boeing 787 Dream liner offers a host of comfort not just to the airline companies, but also to the clients. First, this plane is the first of its kind especially concerning fuel-efficiency. The previous version Boeing 767 consumed more fuel than this make, and this simply means that Qatar Airways will save money in terms of fuel efficiency. Earlier, it was asserted that no business is started without profitability being the target; profitability is only realized when the selling prices exceed the buying one. Thus, this plane will ensure Qatar Airwaysââ¬â¢ fuel expenses fall significantly, by 20% to be precise (Barratt & Dowd, 2014); this will translate to a higher profit margin. Composites materials have been used in the making of this plane in a bid to ensure that fuel efficiency becomes a reality besides providing the need noise reduction. Additionally, the plane is two-engine, and this means its speed is somewhat higher than both its competitors and predecessors. There is a 3-class setting in the plane, a windshield that is four-paneled among other features, which make the plane outstanding (Barratt & Dowd, 2014). In addition to all these, the plane is already operating in a number of other companies, and has full approval Federation Aviation Authorities (FAA). Businesses thrive mainly because of the networking capability its owner has, and this calls for the right partnerships (Khalid, 2006). This would require that the other
Friday, July 26, 2019
Analysis of the business situation of the Virgin Mobile Essay
Analysis of the business situation of the Virgin Mobile - Essay Example bile operates as a virtual network operator, riding on the physical network of T-Mobile, and later Everything Everywhere (Answers Corporation, 2014; Virgin Mobile USA, 2009; Telecompaper, 2014; RCRWirelessAdmin, 2011; RCRWirelessAdmin, 2013; Thomas, 2013; Ofcom, 2013). Virgin Media UK provides a breakdown of financial data for Virgin Mobile in its UK investor relations reports of financial performance. That aside one can get a glimpse of the kinds of numbers that Virgin Mobile is able to generate too, by looking at the financial and subscriber data for Virgin Media, which is the owner of Virgin Mobile in the UK. As of end of December of 2013, Virgin Mobile had about three million customers, a third of whom are prepaid customers, while more than two million are postpaid customers. They offer voice and data services to this customer base, as well as content. The direction of growth is towards increasing the base of postpaid customers (Virgin Media, 2013; Virgin Media, 2014). Moving on to the financial numbers, total revenues for 2013 amounted to 1.846 billion pounds, a substantial slowdown from revenues of over 3 billion pounds for 2011 and for 2012. As a group, this slowdown reflects a general drop in total revenues for the Virgin Media Group, from about 4 billion pounds for 2011 and for 2012, to just 2.3 billion pounds for 2013. The large drop can be attributed to the large drop in revenues for Virgin Mobile (Virgin Media, 2013; Virgin Media, 2014; Google, 2014b). The chosen SBU unit for analysis in this paper is Virgin Mobile n the UK, as a subsidiary of Virgin Media. In turn, Virgin Media has been bought by Liberty Global, with the Virgin Group being able to retain a small share of total ownership after the acquisition. In terms of competition, the big players include BT, Vodafone, and a slew of broadband players like BSkyB also making plays in the same set industry. EE also competes in this same space, the firm providingVirgin Mobile with the physical
Thursday, July 25, 2019
The Difference Between Management And Leadership In School System Essay
The Difference Between Management And Leadership In School System - Essay Example This essay discusses leading for change in the education sector, and also the contribution that teacher leaders can make to school leadership. It examines the type of leadership required and highlights some important differences between management and leadership. Management concerns the process of dealing with, controlling and being responsible for all activities and operations of an organisation. It involves coordinating all members and resources belonging to the organisation according to their potential, and the attempt is to be as efficient and effective as possible. Usually, aims and objectives are defined, planning is undertaken, and the progress is monitored. There is therefore, a focus on structuring, In the UK school system, the managerial tasks in schools are mostly handled by the head teacher, although some may be delegated to deputy heads and/or subject co-ordinators. Leadership places a great emphasis on personal qualities and how leaders influence others. Leadership is n ecessary for organisations in general because without it, an organisation fails to have vision, direction, order and discipline, and consequently, the performance of individuals within the organisation varies and they are unable to exploit their full potential. There are several forms of leadership, which differ in their style although they all share the essential qualities of leadership. Transformational leadership is one very popular form of leadership. In this form, there is a greater attempt to bring about changes to achieve certain goals.
Wednesday, July 24, 2019
How and Why Cultural Groups Tend to See Themselves Essay
How and Why Cultural Groups Tend to See Themselves - Essay Example The approach which is taken allows individuals to continue to hold onto a sense of identity. However, by doing this, there is a loss of learning and ability to understand and accept the mechanics of other cultures. The opposition which is created further creates divisions that do not allow others to have the right perception and insight into creating and integrating solutions and needs within society. Examining the perceptions by Kwame Appiah from ââ¬Å"Moral Disagreementâ⬠and Franklin Foerââ¬â¢s ââ¬Å"How Soccer Explains the Worldâ⬠provides further insight into why the boundaries among groups are considered important and the ways in which this develops and changes the cultural groups in an emerging global society. The work of Foer is based on the division between pro ââ¬â soccer and anti ââ¬â soccer Americans. The division is one which works as an analogy in understanding the difficulties that are created in terms of boundaries and identity between two groups. The boundaries which Foer identifies move further into those who have this identity because it relates to nationality, ethnicity, culture and deeper issues which prevail among those in society. One is able to instantly create a space which they can relate to and remain safe in while those on the outside are kept as unsafe and should not be associated with the group (Foer, 12). The association which Foer creates to this and the idea of safety that comes from various cultural groups is then questioned by the author. While there is a sense of protection and safety in this regard, there is also a lack of being able to work effectively in various areas. Foer creates an analogy to business in which the customs and traditions have to be left aside to complete the end goal. However, this also becomes a threat to other cultural groups that do not recognize this practice, leaving a lack of identity and understanding and causing the boundaries to heighten instead (Foer, 140). The analogies which Foer examines in terms of us versus them and the boundaries of culture are further identified through Appiahââ¬â¢s ââ¬Å"Moral Disagreement.â⬠The theme which is called upon shows that cultural groups have different perceptions of themselves that they do not equate with groups outside of themselves. The cultural groups that are created are defined with the need to carry a similar identity and understanding of where one belongs and the practices they take part in. If one is outside of this group, they may carry a lack of being able to have the same perspective or beliefs. To many, this becomes threatening and causes disruptions in the practices, traditions and beliefs of many. Even more than this, the morality and the actions of groups which do not understand the practices of another can become disrespectful to the other group and the deeply embedded religious, moral or traditional beliefs which are continuously practiced. This particular threat builds even more boundaries among groups and creates a perception of one group holding a sense of ignorance toward another (Appiah, 6). Both of the associations with identity, cultural groups and morality become questionable because of the way in which the world is beginning to change and develop. The move into globalization is leading into all areas of life beginning to break boundaries in terms of sports, business, culture and exchanges which are occurring. This breaking of boundaries is one which is becoming a threat to many, specifically because of the perspective that the other cultures will also break the practices, rituals and beliefs of alternative cultures. This develops more boundaries between both sides and is creating conflicts and disagreemen ts between both sides. The belief in threatening identity and the associations with the problems of culture are then creating even more groups and
Tuesday, July 23, 2019
Review article Essay Example | Topics and Well Written Essays - 1000 words
Review article - Essay Example Studies b and c specifically aimed to examine the potential of CBPR programs whilst study a did not. Study a aimed to assess participants ability to work, this was not a concern in studies b and c. Study c aimed to use existing community-based programs designed for its subject group where as a and b designed research specific programs. poor general health. The target group previously held physically demanding jobs that put strain upon the musculoskeletal system. At the time of the study inactivity due to unemployment was presumed to have decreased the subjectsââ¬â¢ functional capacity and musculoskeletal system. a) In the early 1990ââ¬â¢s in Finland a recession caused major unemployment and rendered 36.7% of the construction workforce long-term unemployed. The general health of construction workers is described as poor and excessive manual labor puts heavy strain on the musculoskeletal system, decreasing functional capacity with age. Long-term unemployment was believed to have decreased functional capacity and general health even further. b) Cardiovascular disease [CVD] and Coronary Heart Disease are the number one cause of death amongst women in the developed world. Most fatalities have no previous symptoms. Public awareness of CVD in women is insufficient. Lack of physical activity impacts a 1.9 fold increase in CVD risk amongst women. shown that moderate exercise of 30+ minutes, 3-5 times a week improves health and functional ability of older adults. Additional studies had awarded 10 centres across the U.S. for best-practice in older adult activity programs. No study had yet assessed the impact of these existing programs on previously sedentary subjects. Sendentary lifestyles and related health issues are common across all three study groups but due to different reasons. The background to study b is one of major CVD fatalities in all female age groups where as studies a and
Monday, July 22, 2019
More Than Just a Story Essay Example for Free
More Than Just a Story Essay Joanna Barteeââ¬â¢s critical essay of Kate Chopinââ¬â¢s short story, The Storm, maintains that the entire story is an allegorical look at feminism and sexual reservations in the Nineteenth Century. She maintains that the storm is a metaphor for the pent up sexual energy that culminates in an extramarital affair while Calixtaââ¬â¢s husband and son ride out the actual storm at a small grocerââ¬â¢s store nearby. Bartee points out that Chopin was in touch with her own feelings regarding sexuality and through this story she was able to express her views though she chose not to make them known through publication in her lifetime. Freud said that sometimes a cigar is just a cigar; the opposite is also true. Bartee makes an effective argument that her assessment is correct by backing up her opinions with pertinent blocks of dialogue from the story and by simply pointing out the obvious. To begin Bartee says that the title of Chopinââ¬â¢s short story has a dual meaning, and though the tale unfolds during a raging storm, the storm of the title is representative of repressed human female sexuality. While Alcee comes to the home of Calixta seeking refuge from the storm it is more a rhetorical device to enable the plot to unfold as it does. The physical storm is irrelevant to the actual theme, which is sexuality and human desire. Bartee says that initially the story begins with just the facts that can be gleaned from a read, assuming the reader is capable of taking a bit of latitude. She tells us that the two main characters, Calixta and Alcee, were once lovers and have now met in the present time of the short story, during a powerful storm. She is reading more into this assessment than is actually said in the story when she declares, ââ¬Å"â⬠¦Calixta and Alcee, had a flirtation several years before the story takes place, but each made a more suitable marriage to someone else and they have not seen each other since,â⬠(Bartee). It is known from the story that they had a flirtation but as for each making a more advantageous marriage, that seems to be speculation. Joanne Barteeââ¬â¢s essay addresses the title, saying that ââ¬ËThe Stormâ⬠is metaphor for the pent up passions of a Victorian period. It seems logical that this is the case, for the author flaunts it at every opportunity. She says, ââ¬Å"They did not heed the crashing torrents, and the roar of the elements made her laugh as she lay in his arms,â⬠(Chopin II-20), to describe the passion of the two. Then she says, ââ¬Å"The rain was over; and the sun was turning the glistening green world into a palace of gems. Calixta, on the gallery, watched Alcee ride away,â⬠(Chopin III-1) to describe the parting of the two, saying that the storm of passion had ebbed. Bartee quotes critic Robert Wilson as well, saying that Wilson believes, Chopinââ¬â¢s title refers to nature, which is symbolically feminine; the storm can therefore be seen as symbolic of feminine sexuality and passion. â⬠Bartee points out that Claxita is the essence of domesticity as the story opens, totally unaware of an impending storm. This storm will not only be the one of nature but rather the storm of her pent up desires, released when her former paramour arrives unexpectedly. She is sewing, while her husbandââ¬â¢s Sunday clothes are airing out on the porch. Bartee believes this is an allusion to polite and proper society in that Sunday clothes can be taken to mean those clothes that her husband would wear to church, accompanied by his wife and child. Early in her critique Bartee says that the entire short story is filled with illustrations of how the storm is the driving force and main theme of Chopinââ¬â¢s story. She also points out that the story was published posthumously, years later, indicating, perhaps, a reluctance to share her views with a Victorian public, believing it was too graphic to be read with her name attached to it. While it is mild by todayââ¬â¢s standards, at the time that it was written it must have been considered a bit risque to have a woman author put her name to a story to obviously full of not only secret sexual desires and passions but infidelity and adultery. The idea that the storm passes just as the tryst is completed and Alcee is riding way is certainly an indication that the natural storm and the storm of passions, which have obviously been sated, are one and the same. Bartee points out that Calixtaââ¬â¢s husband, Bobinot, wisely waits out the storm at the general store just as he avoids the passions of wife as well. He is aware of what the natural storm can do and does not intend to let it batter him, likewise, Bartee says, he is aware of the passions of which his wife is capable and he does not mean to allow himself to be battered that the emotional storm brewing in his wifeââ¬â¢s psyche. Bartee believes that Bobinot is aware of the situation, though this seems to be conjecture on her part. If this is the case then Bobinot is hiding from the passions of a wife by avoidance, and there is not enough information given to make that claim. Bartee points out the obvious with clarity and most of what she says seems logical, but at this point she appears to be taking a leap of imagination that is not justified by the text of Kate Chopin. Calixta seems content to do her familial chores, tending to her home and seeing to her husbandââ¬â¢s clothes. Bartee says at this point that many of the chores that she has to do are done in obvious frustration and are also symbols of the sexual repression of this Nineteenth Century homemaker. This may be the correct assessment as Chopin says that Calixta, ââ¬Å" â⬠¦ unfastened her white sacque at the throat. It began to grow dark, and suddenly realizing the situation she got up hurriedly and went about closing windows and door,â⬠(Chopin II-1). This, Bartee implies, is the foreshadowing that a bad storm is about to blow, and it may overwhelm her. She is leery of how bad it is going to get and takes some nominal precautions to protect her home from the approaching storm. Bartee does not address the symbolism inherent in the actions of Calixta during the initial meeting of the two former intimates. Alcee asks for permission to take shelter on Calixtaââ¬â¢s porch, but they both quickly realize that such shelter is totally ineffective against the fury of the storm, which, obviously at this point is not only refers to the weather but more pointedly, to the raging emotions beginning to build in the man and woman. When Calixta invites Alcee into the home of her family it is virtually a paradigm shift in her attitude toward both the old flame and to her duties as wife and mother. ââ¬Å"He expressed an intention to remain outside, but it was soon apparent that he might as well have been out in the open,â⬠(Chopin II-5). The two then find it appropriate to ââ¬Ëput something under the doorââ¬â¢, to further isolate them from the outside world. The description of her husbandââ¬â¢s clothing, intimate possessions, which cover and protect a man, are exposed outside the home. There is a real possibility that they can be lost, damaged or destroyed, just as her marriage can be lost, damaged or destroyed by her emotional storm of passion. This symbolism of them hanging outside, exposed to the elements, Bartee says, is symbolic of the danger that Calixta feels concerning the approach of the storm. He husbandââ¬â¢s intimate possessions are in danger of being destroyed or lost. Bartee writes, ââ¬Å"They are in danger of blowing away from the strong winds that are approaching with the storm,â⬠(Bartee). Alcee grabs Bobinotââ¬â¢s pants, which, Bartee says Wilson describes as a subversion of the constraints which Calixta, as a married woman, should be feeling. Bartee likewise correctly assesses the description Chopin gives the reader of symbolically putting away a cotton sheet. This sheet, that covers a marriage bed, is in sight when Alcee arrives, but as the two characters talk, Calixta pointedly puts the sheet out of sight, and, if could be inferred, out of mind. Bartee does not mention that the author describes the view she has of the marriage bed itself and that Calixta is aware that the sonââ¬â¢s sleeping couch are in view as well. This could also be taken as symbolic of the intimate glimpse Calixta is permitting a virtual stranger, an outsider to her family, to have of her home and private life. Chopin describes the scene thus, ââ¬Å" The door stood open, and the room with its white, monumental bed, its closed shutters, looked dim and mysterious,â⬠(Chopin II-9). Barteeââ¬â¢s opinion is that in symbolically putting away the cotton sheet, an object of domesticity, getting it out of their sight, Calixta is now symbolically clearing her mind, removing any obstacles that might stand in the way of the two as they move inexorably toward the inevitable passionate union toward which the story has been leading. Bartee quotes lines from the story saying that not only do the two lovers lack any remorse, they feel renewed and invigorated by their act. Bartee says, ââ¬Å"Chopin writes, So the storm passed and everyone was happy. â⬠Bartee does not mention what seems to be more than a casual comment immediately prior to that line. Chopinââ¬â¢s penultimate line reads, ââ¬Å" Devoted as she was to her husband, their intimate conjugal life was something which she was more than willing to forego for a while. â⬠This refers to the wife of Alcee, who, it seems, although unaware of the details of the tryst and the storm, has profited from it. The fact that everyone is happy must therefore include Alceeââ¬â¢s wife, and she is temporarily relieved of the more mundane of her ââ¬Ëwifely dutiesââ¬â¢. Still, Bartee makes an effective argument that her view is correct by backing up her opinions with pertinent blocks of dialogue from the story and by simply pointing out the obvious. Works Cited Bartee, J. The Storm: More Than Just a Story Retrieved 5-23-07 from http://facultystaff. vwc. edu/~cbellamy/Southern%20Literature/SL%20Chopin. htm Chopin, K. The Storm 1898
Investigating the Effects of Surface Area on the Rate of Reaction Essay Example for Free
Investigating the Effects of Surface Area on the Rate of Reaction Essay Aim: To study the effects of changing the surface area on the rate of a chemical reaction Hypothesis: This hypothesis is based on the Collision Theory, where in order to react, the two particles involved must: 1. Collide with each other 2. The collision must be energetic enough to overcome the activation energy of the reaction 3. The collision must bring the reactive parts of the molecule into contact the correct way ââ¬â they must collide with appropriate geometry (the reactive parts) Considering that the surface area of a particle is a factor that mainly affects the collision rate of particles, it would be safe to assume that as the surface area increases, the reaction rate increases. The graph should turn out to be something like this: 1. the reaction is the fastest at the start 2. The reaction is slowing down here 3. No more product is formed Amount of product Time Variables: Variable Factor What is manipulated Dependent Time The time it takes for the reaction to complete depends on the surface area of the compounds being used, because it determines the rate in which the reaction will occur. Independent Volume of the gas collected (H2, CO2) The amount of gas collected for each experiment will depend on the Controlled 1. Mass of Calcium Carbonate (both marble chips and powdered form) 2. Mass of Magnesium (both ribbon and powder) 3. Volume of Hydrochloric Acid 4. Apparatus Used 1. The masses of the substances utilized will remain constantly fixed during the experiment 2. 50 cm3 of HCl will be used for every trial ââ¬â 550 cm3 in total 3. The apparatus used will remain the same throughout the whole experiment Chemical Reactions: Mg + 2HCl ââ â MgCl2 + H2 1. Magnesium ribbon 2. Hydrogen Gas will be the gas collected 1. 3 Trials will take place 1. Mass of Magnesium ribbon in: 1. Trial 1: 0.064 grams 2. Trial 2: 0.063 grams 3. Trial 3: 0.065 grams CaCO3 + 2HCl ââ â CaCl2 + H2O + CO2 1. Marble Chips 2. Carbon Dioxide will be the gas collected 1. 2 Trials will take place 1. Mass of Marble Chips in: 1. Trial 1: 3.998 grams 2. Trial 2: 3.988 grams Na2CO3 + 2HCl ââ â 2NaCl + H2O + CO2 1. Sodium Carbonate (Powdered) 2. Carbon Dioxide will be the gas collected 1. 2 Trials will take place 1. Mass of Sodium Carbonate 1. Trial 1: 0.504 grams 2. Trial 2: 0.505 grams Apparatus: 1. Eye-Protection ââ¬â 1 pair of Safety Glasses 2. 1 pair of Scissors 3. 1 Electronic Scale 4. 1 Conical Flask (100cm3) 5. 1 Single-holed rubber bung and delivery tube to fit conical flask 6. 1 Measuring cylinder (100cm3) 7. Stopwatch Chemicals: 1. 12cm of Magnesium Ribbon 2. 550 cm3 of Hydrochloric Acid 3. Marble Chips 4. Sodium Carbonate (Powdered) Method: 1. Set up apparatus as shown 2. Fill the conical flask with 50cm3 of HCl 3. Insert the end of the syringe into the hole on top of the stopper 4. Add the magnesium ribbon 5. Seal the flask with a rubber stopper as quickly as you can, at the same time have someone else present to start the stop watch once the magnesium ribbon has been added to the hydrochloric acid 6. As the reaction takes place, note down the time it takes for the gas collected to reach a multiple of 5 (i.e. 5mL, 10mL â⬠¦.50,55,60,65 etc) 7. Keep measuring until the reaction has stopped, or you are unable to measure anymore 8. Repeat each experiment 3 times, just to be sure the data collected is accurate 9. At step 4, replace the underlined compound with the next compound after one experiment is completed Data Recorded Magnesium Ribbon ââ¬â Mg + 2HCl ââ â MgCl2 + H2 Trial 1 (0.064 à ± 0.005 grams) Time (in seconds) à ± 0.05 s Volume (in cm3) à ± 2.5 cm3 Conclusion Unfortunately I was unable to create a graph using time as the independent variable, because the lab that I had utilized did not have the equipment available to accurately to record the data if time were to be the independent variable. Another factor that played into my decision was the fact that the smallest calibration of the glass syringe I used was 5 cm3. Since the only visible measurements shown on the syringe were multiples of 5, it would only seem reasonable that I switch around the variables, making time the dependent variable, and the volume collected the independent variable, since I couldnââ¬â¢t exactly measure how much gas would be collected every 5 seconds; otherwise the relationship the graph would depict would be completely incorrect. As you can see on the graphs, the slightly steep slopes show when the reaction is the quickest, as it should be in the beginning. The curve shows the reaction slowing down, but unfortunately the curve continues. This is because the reaction is still taking place. I was unable to record the rest of the data because the measuring tools that were available werenââ¬â¢t able to record to such a high degree. In some cases though, like in the powdered sodium carbonate experiment, the reaction began so quickly that I wasnââ¬â¢t able to record the time in most cases, so I just stuck with those that I had managed to note down. In other cases, there were so many distractions in the lab that it was difficult to remain focused. My classmates kept removing some if the items that I was using. The idea was to see how the rate of reaction changed when the surface area of a substance was increased. Initially, my plan was to react magnesium ribbon and magnesium powder with 1 mole of Hydrochloric acid; so I could compare and contrast how the surface area of the substance affected the rate of reaction. I had planned to keep everything about the two substances the same. Its element, mass, the amount of Hydrochloric acid I was going to react with it; the only thing different would be its surface area. Unfortunately the Lab didnââ¬â¢t have any available. So I decided to do the same experiment to Calcium Carbonate, this time using marble chips and powdered calcium carbonate. To my dismay I found that the powdered calcium carbonate wasnââ¬â¢t reacting at all. So I had to change it to sodium carbonate. There is skepticism about using different elements, seeing as they have different orders of reactivity. These factors, including the concentration of the acid used, could also affect the rate of reaction. However, the same acid concentration was used for all experiments, in all trials; so we can dismiss that. However, sodium is much higher up the reactivity series than calcium, which is higher up the reactivity series than magnesium. This is the problem with this experiment; the elements positions in the reactivity series could have really altered the rate of reaction. However, the experiments still prove that when the surface area of a substance is increased, the rate of reaction increases as well. This happens because, when two substances react only the surface particles of the substances can come into direct contact with the reactant particles. Increasing a substanceââ¬â¢s surface area, like turning big solid chunks of calcium carbonate into powder, leaves more solid particles available to react. The more particles available to react at one time, the faster the rate of the reaction. Like this: Only atoms on the surface can react If you break the substance down, more atoms are exposed and ready to react. Evaluation Considering the lack of material available, I think I was able to manage the experiment fairly enough to produce results. However, I am not pleased with the factors that may or may not have affected my results, and the circumstances in which I had to switch my variables around. Therefore I would like to state a few things I would like to alter, if ever I got the change to do this experiment again. 1. Apparatus 1. Next time, instead of using a stopwatch, I would like to use a digital device, like a laptop for example, that was somehow connected to the glass syringe, which was programmed to record the volume of the gas collected every 5 seconds. This time the graph would turn out the way it should be. 2. Instead of using a measuring cylinder, I would replace it with a burette, as it takes more accurate measurements of liquids. 1. Chemicals Used 1. I would try and used the same element next time; the only difference would be the surface area. For example, if I used magnesium, to study the effects of surface area on the rate of reaction, I would only you magnesium ribbon and magnesium powder. Studying different elements with different reactivityââ¬â¢s would dismiss any data already collected because an elementââ¬â¢s position on the reactivity series may also determine the rate of reaction. Use the same element. 1. Amount of People involved in the experiment 1. If I had to do the experiment again, with the same apparatus, I think I would like to have 3 people participating in the collection of data. 1 person would be watching the syringe rise and call out to record whenever it rose, the 2nd person would time it, and the 3rd person would record it. This time, the data may be even more accurate, because no one is taking their eye off the experiment, like I was doing during my experiment just to record data. I feel that altering these aspects of the experiment would increase the level of accuracy, as to get more substantial data to calculate the order of reaction. Unfortunately with the data I have so far, I am unable to derive the concentrations of the substances I had utilized in my experiment. However, as the objective was to investigate whether or not different surface areas affected the rate of the reaction, I think that I have produced enough data to support my theory.
Subscribe to:
Posts (Atom)