Chemistry 0620 · IGCSE · Reversible reactions and equilibrium

Reversible reactions and equilibrium — practice question

Ammonia is made by a reversible reaction. $\text{N}_2(g) + 3\text{H}_2(g) \rightleftharpoons 2\text{NH}_3(g)$ The forward reaction is exothermic. What effect does increasing the pressure have on the percentage yield and the rate of formation of ammonia?

  • Apercentage yield decreases, rate of formation decreases
  • Bpercentage yield decreases, rate of formation increases
  • Cpercentage yield increases, rate of formation decreases
  • Dpercentage yield increases, rate of formation increases

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