Chemistry 0620 · IGCSE · Reversible reactions and equilibrium

Reversible reactions and equilibrium — practice question

The reversible reaction below involves methane and steam. $\text{CH}_4(g) + \text{H}_2\text{O}(g) \rightleftharpoons \text{CO}(g) + 3\text{H}_2(g)$ The forward reaction is endothermic. Which alterations in pressure and temperature shift the equilibrium to the right?

  • Apressure decrease, temperature decrease
  • Bpressure decrease, temperature increase
  • Cpressure increase, temperature decrease
  • Dpressure increase, temperature increase

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