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6.2 Reversible reactions and dynamic equilibrium

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Question 1

A student puts a small amount of white ammonium chloride in the middle of a long glass tube. The student heats the tube where the ammonium chloride is positioned. After several minutes, the student stops heating and allows the tube to cool.

NH4Cl(s)⇌NH3(g)+HCl(g)\text{NH}_4\text{Cl(s)} \rightleftharpoons \text{NH}_3\text{(g)} + \text{HCl(g)}NH4​Cl(s)⇌NH3​(g)+HCl(g)

Describe the changes seen in the heated region and in the cooler regions of the tube. Explain how changing the temperature causes these changes and how energy is transferred in the two directions of the reaction.

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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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