Practice question
Question
The enthalpy of combustion of glucose is -2808 kJ/mol. How much heat is released when 90 g of glucose is burnt? (Molar mass of C₆H₁₂O₆ = 180 g/mol)
Explanation
Moles = 90 / 180 = 0.5 mol, heat released = 0.5 × 2808 = 1404 kJ.
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