A-LevelChemistryChemical energetics9701/12 · May/June 2014 · Q31 Mark
The enthalpy change of formation of carbon dioxide is –394 kJ mol⁻¹. The enthalpy change of formation of water is –286 kJ mol⁻¹. The enthalpy change of formation of methane is –74 kJ mol⁻¹. What is the enthalpy change of combustion of methane?
A-892 kJ mol⁻¹
B-606 kJ mol⁻¹
C+606 kJ mol⁻¹
D+892 kJ mol⁻¹
✓ Correct answer
A: -892 kJ mol⁻¹
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