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5.2 Reversible reactions and equilibria

5.2 Reversible reactions and equilibria

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Question 2

Sulfur dioxide reacts with oxygen to produce sulfur trioxide. The reversible reaction is represented by the following equation:

2SO2(g)+O2(g)⇌2SO3(g) 2\text{SO}_2(\text{g}) + \text{O}_2(\text{g}) \rightleftharpoons 2\text{SO}_3(\text{g}) 2SO2​(g)+O2​(g)⇌2SO3​(g)

The forward reaction is exothermic.

Explain the effect of decreasing the temperature on the equilibrium yield of sulfur trioxide.

[2]
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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