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Chemical equilibria, Le Chatelier’s principle and Kc​

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Question 7

Which statement is correct regarding the addition of a catalyst to a chemical system at dynamic equilibrium?

A

The yield of products increases because the forward reaction is favored.

B

The activation energy of the forward reaction decreases, while that of the reverse reaction remains unchanged.

C

The rates of both the forward and reverse reactions increase equally.

D

The value of the equilibrium constant, KcK_cKc​, increases.

Markscheme

Chemical equilibria, Le Chatelier’s principle and Kc Questions

  1. A Level
  2. /Chemistry
  3. /Chemical equilibria, Le Chatelier’s principle and Kc

24 exam-style questions on AQA A Level Chemistry Chemical equilibria, Le Chatelier’s principle and $K_c$, covering Chemical equilibria and Le Chatelier's principle and Equilibrium constant $K_c$ for homogeneous systems. Each one has a worked solution and a mark scheme showing where the marks go.

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