Chemistry 9701 · AS & A Level · Equilibria

Equilibria — practice question

Nitrogen dioxide, $\text{NO}_2$, is in equilibrium with dinitrogen tetroxide, $\text{N}_2\text{O}_4$. $2\text{NO}_2(g) \rightleftharpoons \text{N}_2\text{O}_4(g) \qquad \Delta H = -57\,\text{kJ mol}^{-1}$ Which set of conditions gives the highest percentage of $\text{N}_2\text{O}_4(g)$ at equilibrium?

  • Apressure: high; temperature: high
  • Bpressure: high; temperature: low
  • Cpressure: low; temperature: high
  • Dpressure: low; temperature: low

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