Chemistry 9701 · AS & A Level · Equilibria

Equilibria — practice question

The Haber process used to produce ammonia is shown by the equation below. $\text{N}_2(g) + 3\text{H}_2(g) \rightleftharpoons 2\text{NH}_3(g) \qquad \Delta H = -92\ \text{kJ mol}^{-1}$ Which statement is correct about 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 rate.

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