A student suggests that reaction rate is only dependent on temperature, since he
ID: 525834 • Letter: A
Question
A student suggests that reaction rate is only dependent on temperature, since he performed an experiment, showing the higher the temperature the faster the solution appears colorless. Does this seem reasonable? Why is it reasonable that increasing temperature increases the reaction rate? The reaction is: A_(violet) + B" C It does make sense that at higher temperatures reactions go faster because higher temperatures mean A and B molecules are moving around faster, and they are more likely to collide and form C. However, there still might be other factors that can only be determined by another experiment. Higher temperatures probably do make a reaction go faster, since when A and B molecules are moving quickly. they are more likely to collide, and have the opportunity to make C. By this reasoning, the concentration of A and B matter as well, since increasing concentrations increases how often A and B collide. It does not make sense because at higher temperatures, A and B molecules will be moving too fast to form a bond. It only makes sense that the rate of a chemical reaction only depends on the properties of the two molecules. It does make sense because at higher temperatures, reactions go faster. That's why you heat up gasoline to burn it. It does make sense because higher temperatures mean A and B molecules are moving around faster, and they are more likely to collide and form C.Explanation / Answer
It does make sense that at higher temperatures, reactions go faster because higher temperatures mean A and B molecules are moving around faster and they are more likely to collide and form C. However, there still might be other factors that can only be determined by another experiment.
The other factors that are being considered which might affect the rate of reaction are concentration, mixing and extent of mixing of reactants, or if any catalyst can improve the rate of reaction Also the dependency on reactant concentration may or may not be present,as in case of zero order reaction the rate of reaction is not dependent on reactant concentration,however in case of 1st, 2nd or other order reactions the rate will be dependent on concentration of reaction which can be found out from another experiment, whether it is dependent on concentration or not and how it is dependent on it and similarly experiment will have to be carried out ti find the dependency on mixing extent and catalyst requirement.
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