The combustion of 0.6654 g of an organic compound with a molecular mass of 46.07 amu causes the temperature in the calorimeter to rise from 25.000oC to 30.589 oC in a constant volume bomb calorimeter. The total heat capacity of the calorimeter and all its contents is 3576 JoC-1. Determine the energy of combustion of the organic compound, U/ kJ mol-1?