A-LevelChemistryReaction kineticsOct/Nov 2022Paper 1 Q111 Mark
The Haber process is carried out with a nitrogen partial pressure of 50 kPa, a hydrogen partial pressure of 150 kPa, a temperature of 400 °C and an iron catalyst. N2(g) + 3H2(g) ⇌ 2NH3(g) If all other conditions are kept the same, which change will result in a raised activation energy?
ABoth the nitrogen and hydrogen partial pressures are changed to 100 kPa.
BThe iron is removed.
CThe nitrogen partial pressure is increased to 150 kPa.
DThe temperature is increased to 500 °C.
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The correct answer is B. This question tests the candidate's understanding of reaction kinetics within the Chemistrysyllabus. The examiner's mark scheme requires...
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