A-LevelChemistryEquilibria9701/12 · May/June 2013 · Q81 Mark

The reaction between sulfur dioxide and oxygen is a dynamic equilibrium. 2SO₂(g) + O₂(g) ⇌ 2SO₃(g) What happens when the pressure of the system is increased?

AThe rate of reaction will decrease and the position of the equilibrium will move to the left.

BThe rate of reaction will decrease and the position of the equilibrium will move to the right.

CThe rate of reaction will increase and the position of the equilibrium will move to the left.

DThe rate of reaction will increase and the position of the equilibrium will move to the right.

✓ Correct answer

D: The rate of reaction will increase and the position of the equilibrium will move to the right.

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Topic: Equilibria, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, May/June 2013 Paper 1 Variant 2, question 8.

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