Under constant volume conditions the heat of combustion of benzoic acid (C6H5COOH) is -26.38 kJ/g. A 1.640 g sample of benzoic acid is burned in a bomb calorimeter. The temperature of the calorimeter rises from 22.25 oC to 27.20 oC. A 2.500 g sample of glucose (C6H12O6) is then burned in the same calorimeter. The temperature of the calorimeter rises from 20.55 oC to 25.00 oC. What is the ?Hcombustion of glucose in kJ/mol?
H: 1.008 g/mol
C: 12.011 g/mol
O: 15.999 g/mol