Chemistry 0620 · IGCSE · Reversible reactions and equilibrium

Reversible reactions and equilibrium — practice question

Methane combines with steam to form hydrogen and carbon monoxide. $\text{CH}_4(g) + \text{H}_2\text{O}(g) \rightleftharpoons 3\text{H}_2(g) + \text{CO}(g)$ This reaction is reversible. The forward reaction absorbs heat. Which alterations in temperature and pressure would raise the equilibrium yield of carbon monoxide?

  • Atemperature decrease, pressure decrease
  • Btemperature decrease, pressure increase
  • Ctemperature increase, pressure decrease
  • Dtemperature increase, pressure increase

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