A-LevelChemistryEquilibria9701/12 · Feb/Mar 2018 · Q111 Mark

The reaction between sulfur dioxide and oxygen is reversible. 2SO₂ + O₂ ⇌ 2SO₃ ΔH° = –196 kJ mol⁻¹ Which conditions of pressure and temperature favour the reverse reaction?

Ahigh high

Bhigh low

Clow high

Dlow low

✓ Correct answer

C: low high

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Topic: Equilibria, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Feb/Mar 2018 Paper 1 Variant 2, question 11.

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