The standard enthalpies of formation of , , and solid glucose at 25°C are -400, -300, and -1300 kJ/mol respectively. Calculate the absolute magnitude of the standard enthalpy of combustion per gram of

Question

The standard enthalpies of formation of $CO_2(g)$, $H_2O(l)$, and solid glucose at 25°C are -400, -300, and -1300 kJ/mol respectively. Calculate the absolute magnitude of the standard enthalpy of combustion per gram of glucose. (Molar mass = 180 g/mol)

Prashant Kotian · Accepted Answer

Correct answer: A. Combustion of glucose: . kJ/mol. Heat released per gram = kJ/g.

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