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Tutor HuntTest QuestionsChemistry QuestionsYear 10 Chemistry Questions

 

Calculating Rates Of Reactions (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Calculating Rates Of Reactions' from the broader topic The Rate And Extent Of Chemical Change. The test is geared towards the AQA exam board style syllabus.
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Below a typical questions that will be covered in this test. You final score will be logged on your account

On a mass–time graph for a reaction where mass falls as gas escapes, what does the gradient of the curve represent?
On a graph showing product amount vs time that flattens to a plateau, what does the plateau represent?
Which expression gives the average rate of reaction between times t1 and t2 on a concentration–time graph?
If doubling the concentration of A causes the reaction rate to increase by a factor of four, what does this suggest about the rate law in terms of A?
Why does the instantaneous rate often fall during a reaction even if conditions (T, catalyst, surface area) are unchanged?
What happens to the instantaneous rate as a reaction proceeds (for most reactions with no other changes)?
Which rate equation corresponds to a reaction that is second order with respect to A only?
If doubling the concentration of A causes the reaction rate to double, what is the order of reaction with respect to A?
Which statement best describes the collision theory explanation for reaction rates?
What is the purpose of the initial-rate method in kinetics experiments?
How is the instantaneous rate at time t obtained from a concentration–time graph?