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Chemistry · Oct / Nov 2021 · Paper 11 · Question 18

5070Rate of reaction

The equation shows the reaction for the manufacture of ammonia. N2(g) + 3H2(g) ⇌ 2NH3(g) Which change will decrease the activation energy of the reaction?

  1. Aaddition of a catalyst
  2. Bdecrease in temperature
  3. Cincrease in concentration
  4. Dincrease in pressure

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Correct answer: A. addition of a catalyst

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