Chemistry 9701 · AS & A Level · Equilibria

Equilibria — practice question

The Haber process used to produce ammonia is shown by the equation below. $\text{N}_2(\text{g}) + 3\text{H}_2(\text{g}) \rightleftharpoons 2\text{NH}_3(\text{g}) \qquad \Delta H = -92\,\text{kJ mol}^{-1}$ Which statement is right for this reaction if the temperature is raised?

  • ABoth forward and backward rates increase.
  • BThe backward rate only increases.
  • CThe forward rate only increases.
  • DThere is no effect on the backward or forward rates.

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