A-LevelChemistryReaction kinetics9701/12 · Feb/Mar 2022 · Q151 Mark
The Boltzmann distribution for one mole of a gas at temperature T is shown. [Figure 15.1] One mole of the same gas is added, and the gas remains at temperature T. Which dotted curve shows the distribution with the added gas? [Figure 15.2]
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.
ADiagram showing a Boltzmann distribution with a higher peak and the same overall shape as the original solid curve.
BDiagram showing a Boltzmann distribution with a lower peak and a shift to higher energies compared to the original solid curve.
CDiagram showing a Boltzmann distribution with a higher peak and a shift to lower energies compared to the original solid curve.
DDiagram showing a Boltzmann distribution with a lower peak and the same overall shape as the original solid curve.
✓ Correct answer
A: Diagram showing a Boltzmann distribution with a higher peak and the same overall shape as the original solid curve.
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