Chemistry 0620 · IGCSE · Reversible reactions and equilibrium

Reversible reactions and equilibrium — practice question

Hydrogen is produced when carbon reacts with steam. The reaction is represented by the equation below. $\text{C}(s) + \text{H}_2\text{O}(g) \rightleftharpoons \text{H}_2(g) + \text{CO}(g)$ The forward reaction absorbs heat. Which row gives the pressure and temperature changes that would both move the equilibrium position to the right?

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

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