A-LevelChemistryReaction kinetics9701/12 · May/June 2013 · Q41 Mark

Which factor can affect the value of the activation energy of a reaction?

Achanges in concentration of the reactants

Bdecrease in temperature

Cincrease in temperature

Dthe presence of a catalyst

✓ Correct answer

D: the presence of a catalyst

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Topic: Reaction kinetics, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, May/June 2013 Paper 1 Variant 2, question 4.

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