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Physical chemistry

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Question 5

Which statement(s) is/are correct when a catalyst is added to a chemical system in dynamic equilibrium at a constant temperature?

  1. The activation energy for both the forward and reverse reactions is reduced by the same amount.
  2. The position of equilibrium shifts to favor the formation of products.
  3. The equilibrium constant, KcK_{\text{c}}Kc​, remains unchanged.
A

1, 2 and 3

B

Only 1 and 2

C

Only 1 and 3

D

Only 2 and 3

Markscheme

Physical chemistry Questions

  1. A Level
  2. /Chemistry
  3. /Physical chemistry

54 exam-style questions on OCR A A Level Chemistry Physical chemistry, covering Enthalpy changes, Reaction rates, and Chemical equilibrium. Each one has a worked solution and a mark scheme showing where the marks go.

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