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Which statement about the addition of a catalyst to an equilibrium mixture is correct? A The activation energy for the reverse reaction increases - AQA - A-Level Chemistry - Question 20 - 2021 - Paper 3

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Which statement about the addition of a catalyst to an equilibrium mixture is correct? A The activation energy for the reverse reaction increases. B The equilibr... show full transcript

Worked Solution & Example Answer:Which statement about the addition of a catalyst to an equilibrium mixture is correct? A The activation energy for the reverse reaction increases - AQA - A-Level Chemistry - Question 20 - 2021 - Paper 3

Step 1

C The rate of the reverse reaction.

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Answer

A catalyst increases the rate of both the forward and reverse reactions equally by lowering the activation energy for both processes. This means that while the equilibrium position remains unchanged, the system reaches that position more quickly. Therefore, the correct statement is that the rate of the reverse reaction increases.

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