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5.3 Equilibria

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Question 17
H

Methanol is made from carbon monoxide and hydrogen.

CO(g)+2H2(g)⇌CH3OH(g) \mathrm{CO(g) + 2H_{2}(g) \rightleftharpoons CH_{3}OH(g)} CO(g)+2H2​(g)⇌CH3​OH(g)

The forward reaction is exothermic.

Which change would not increase the yield of methanol at equilibrium?

[1]
A

Increasing the pressure of the mixture

B

Lowering the temperature of the mixture

C

Adding a catalyst to the mixture

D

Removing methanol from the mixture

Markscheme

5.3 Equilibria Questions

  1. GCSE
  2. /Chemistry
  3. /5.3 Equilibria

47 exam-style questions on OCR GCSE Chemistry 5.3 Equilibria, covering 5.3.1 Reversible reactions and dynamic equilibrium and 5.3.2 Changing the position of equilibrium. Each one has a worked solution and a mark scheme showing where the marks go.

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