Rates of Reaction exam questions
Exam-style Rates of Reaction questions with worked solutions, step-by-step methods and common student mistakes. Practice for Chemistry and other qualifications.
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Try these Rates of Reaction questions
Answer ALL questions. Write your answers in the spaces provided.
Give three ways to increase the rate of a chemical reaction.
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Any three of: increase temperature, increase concentration (or pressure for gases), increase surface area, add a catalyst.
(Total for Question 1 is 3 marks)
Using collision theory, explain why increasing concentration increases the rate of reaction.
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There are more reactant particles in the same volume, so collisions are more frequent, giving more successful collisions per second.
(Total for Question 2 is 2 marks)
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