Chemistry 9701 · AS & A Level · Chemical energetics

Chemical energetics — practice question

Bond enthalpy data should be used to answer this question. The equation below shows the complete combustion of methane. $\text{CH}_4 + 2\text{O}_2 \rightarrow \text{CO}_2 + 2\text{H}_2\text{O}$ What is the enthalpy change of combustion of methane?

  • A$-1530\,\text{kJ mol}^{-1}$
  • B$-1184\,\text{kJ mol}^{-1}$
  • C$-770\,\text{kJ mol}^{-1}$
  • D$-688\,\text{kJ mol}^{-1}$

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