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5.3 Equilibria

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Question 20
H

A reversible reaction between gases is carried out at different temperatures and pressures. The graph shows the percentage yield of product at equilibrium.

image:image40.png

Which row is correct for this reaction?

[1]
A

Forward reaction: exothermic; molecules of gas: fewer on the product side

B

Forward reaction: exothermic; molecules of gas: more on the product side

C

Forward reaction: endothermic; molecules of gas: fewer on the product side

D

Forward reaction: endothermic; molecules of gas: more on the product side

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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