The combustion of glucose, C6 H12 O6 (s), produces carbon dioxide, CO2 (g), and water, H2 O(g), according to the equation below. Upper C subscript 6 upper H subscript 12 upper O subscript 6 (s) plus 6 upper O subscript 2 (g) right arrow 6 upper C upper O subscript 2 (g) plus 6 upper H subscript 2 upper O (l). The enthalpy of the reaction is â€"2,840 kJ. What is the heat of combustion, per mole, of glucose? â€"2,840 kJ/mol â€"473. 3 kJ/mol 473. 3 kJ/mol 2,840 kJ/mol.