Chemistry 9701 · AS & A Level · Equilibria

Equilibria — practice question

In this question, it may be assumed that all gases behave ideally. A chemist heats a mixture of nitrogen and oxygen gases in a sealed container at constant temperature until the system attains a dynamic equilibrium containing $\text{N}_2(g)$, $\text{O}_2(g)$ and $\text{NO}(g)$. $\text{N}_2(g) + \text{O}_2(g) \rightleftharpoons 2\text{NO}(g)$ The chemist carries out the experiment again at the same temperature, with the same initial amounts of $\text{N}_2(g)$ and $\text{O}_2(g)$, but under a much greater pressure. Which statements about the second experiment at higher pressure are correct?

  • A1, 2 and 3
  • B1 and 2 only
  • C2 and 3 only
  • D1 only

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI