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6.2 Reversible reactions and dynamic equilibrium

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Question 45

A reversible reaction in a sealed container is at equilibrium at each temperature. The percentage of substance B in the equilibrium mixture is measured.

Temperature in °CPercentage of substance B
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40051
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A(g)⇌B(g) \text{A(g)} \rightleftharpoons \text{B(g)} A(g)⇌B(g)

Explain what the results show about the forward reaction, and predict how cooling the mixture would change the equilibrium position.

[2]
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6.2 Reversible reactions and dynamic equilibrium Questions

  1. GCSE
  2. /Chemistry
  3. /6.2 Reversible reactions and dynamic equilibrium

109 exam-style questions on AQA GCSE Chemistry 6.2 Reversible reactions and dynamic equilibrium, covering 6.2.1 Reversible reactions, 6.2.2 Energy changes and reversible reactions, 6.2.3 Equilibrium, 6.2.4 The effect of changing conditions on equilibrium, 6.2.5 The effect of changing concentration, 6.2.6 The effect of temperature changes on equilibrium, and 6.2.7 The effect of pressure changes on equilibrium. Each one has a worked solution and a mark scheme showing where the marks go.

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