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5.2 Reversible reactions and equilibria

5.2 Reversible reactions and equilibria

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Question 3

The decomposition of dinitrogen tetroxide (N2O4\text{N}_2\text{O}_4N2​O4​) into nitrogen dioxide (NO2\text{NO}_2NO2​) is a reversible reaction that can reach a state of dynamic equilibrium.

N2O4(g)⇌2NO2(g) \text{N}_2\text{O}_4\text{(g)} \rightleftharpoons 2\text{NO}_2\text{(g)} N2​O4​(g)⇌2NO2​(g)

The forward reaction is endothermic (absorbs heat).

Explain how the position of equilibrium changes if the temperature of the reaction mixture is decreased.

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Markscheme

5.2 Reversible reactions and equilibria Questions

  1. GCSE
  2. /Chemistry
  3. /5.2 Reversible reactions and equilibria

38 exam-style questions on Edexcel GCSE Chemistry 5.2 Reversible reactions and equilibria, covering 5.2.1 Reversible reactions and dynamic equilibrium, 5.2.2 The Haber process, and 5.2.3 Changing the position of a dynamic equilibrium. Each one has a worked solution and a mark scheme showing where the marks go.

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