Three gases take part in a reversible reaction.
A(g)+B(g)⇌C(g)\text{A(g)} + \text{B(g)} \rightleftharpoons \text{C(g)}A(g)+B(g)⇌C(g)
Forming 1 mole of C transfers 112 kJ of energy to the surroundings.
C can react to form A and B.
State whether this reaction is exothermic or endothermic.
Give the energy transferred when 1 mole of C reacts.
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.