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6.2 Reversible reactions and dynamic equilibrium

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Question 19
H

Dinitrogen tetroxide is colourless and nitrogen dioxide is dark brown. A sealed tube of the equilibrium mixture is placed in hot water and the colour becomes darker.

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

What does this show?

[1]
A

The forward reaction is exothermic and is favoured by heating

B

The forward reaction is endothermic and is favoured by heating

C

The forward reaction is exothermic and is favoured by cooling

D

The forward reaction is endothermic and is favoured by cooling

Markscheme

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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