A-LevelChemistryReaction kineticsMay/June 2025Paper 1 Q31 Mark
The diagram shows a Boltzmann distribution of molecular energies for a gaseous reaction at two different temperatures and two different activation energies. [Figure showing Boltzmann distribution with T1, T2, EA(1), EA(2)] Which combination of temperature and activation energy will give the highest reaction rate?
AT₁ and EA(1)
BT₁ and EA(2)
CT2 and EA(2)
DT2 and EA(1)
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The correct answer is D. This question tests the candidate's understanding of reaction kinetics within the Chemistrysyllabus. The examiner's mark scheme requires...
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Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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