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Chemistry · May / June 2026 · Paper 12 · Question 14

5070Exothermic and endothermic reactions

The reaction pathway diagram for both the catalysed and uncatalysed reactions between N2 and H2 in the Haber process is shown. What is the activation energy for the formation of NH3 in the presence of a catalyst?

  1. AA
  2. BB
  3. CC
  4. DD

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Correct answer: C. C

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