Chemistry 9701 · AS & A Level · Chemical energetics

Chemical energetics — practice question

A reaction that leads to oxides of nitrogen being present in car exhausts is the formation of NO. $\text{N}_2 + \text{O}_2 \rightarrow 2\text{NO} \quad \Delta H = +180\,\text{kJ mol}^{-1}$ What is the bond energy, in $\text{kJ mol}^{-1}$, of the bond joining the atoms in NO?

  • A655
  • B835
  • C1310
  • D1670

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