ChemistryEnergy changesWAEC
Heat released when 2 mol of a substance burns is 1,600 kJ. Find the heat of combustion per mole.
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Answer: B. −800 kJ/mol
1,600 ÷ 2 = 800 kJ per mole, released, so ΔH = −800 kJ/mol.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.