Chemistry 0620 · IGCSE · Reversible reactions and equilibrium

Reversible reactions and equilibrium — practice question

In a reversible reaction, two molecules of nitrogen dioxide join to produce dinitrogen tetroxide. The forward reaction gives out heat. $2\text{NO}_2(g) \rightleftharpoons \text{N}_2\text{O}_4(g)$. Which changes to the reaction conditions would each lead to a greater amount of dinitrogen tetroxide at equilibrium?

  • Adecreasing the temperature and decreasing the pressure
  • Bdecreasing the temperature and increasing the pressure
  • Cincreasing the temperature and decreasing the pressure
  • Dincreasing the temperature and increasing the pressure

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