Chemistry 9701 · AS & A Level · Chemical energetics

Chemical energetics — practice question

Nitrogen and oxygen can combine to produce nitrogen monoxide, NO. $\text{N}_2 + \text{O}_2 \rightarrow 2\text{NO}\quad \Delta H = +180\,\text{kJ mol}^{-1}$. What is the bond energy of the bond between the atoms in NO?

  • A$630\,\text{kJ mol}^{-1}$
  • B$810\,\text{kJ mol}^{-1}$
  • C$1260\,\text{kJ mol}^{-1}$
  • D$1620\,\text{kJ mol}^{-1}$

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