Chemistry 9701 · AS & A Level · Equilibria

Equilibria — practice question

For the equation shown, an equilibrium is reached at a temperature of $700\,\text{K}$. The equilibrium constant, $K_p$, for this reaction is $9.80\,\text{kPa}$. At equilibrium, the partial pressure of $\text{N}_2\text{O}_4$ is $80.0\,\text{kPa}$. $\text{N}_2\text{O}_4\text{(g)} \rightleftharpoons 2\text{NO}_2\text{(g)}$ What is the partial pressure of $\text{NO}_2$ at equilibrium?

  • A$8.16\,\text{kPa}$
  • B$28.0\,\text{kPa}$
  • C$66.6\,\text{kPa}$
  • D$784\,\text{kPa}$

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