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Hess's Law Example 6

Edexcel AS-level ChemistryEnthalpyLesson 17 of 21

Worked example: formation of ethanol from combustion data

Calculate ΔfHθ for ethanol:

2C(s) + 3H2(g) + ½O2(g) → C2H5OH(l)

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Key terms in this lesson

enthalpy change of combustion
The enthalpy change when one mole of a substance is completely burned in oxygen, with all reactants and products in standard states.

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All 21 lessons in Enthalpy · All Edexcel AS-level Chemistry topics