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A-LevelChemistryReaction kinetics9701/12 · Oct/Nov 2024 · Q161 Mark

The Boltzmann distribution for a mixture of gases capable of reaction is shown. The two curves represent the mixture of gases at 25°C and at 35°C. The activation energies for the catalysed and uncatalysed reactions are shown. [Figure showing Boltzmann distribution curves with Ea catalysed, Ea uncatalysed, and shaded regions w, x, y, z] Which row is correct?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

Aw+x+y+z z
Bw+x+y+z x+z
Cy + z z
Dy + z x+z

✓ Correct answer

D: y + z x+z

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About this question

Topic
Reaction kinetics, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source
A-Level Chemistry, Oct/Nov 2024 Paper 1 Variant 2, question 16.

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