(10pts)The norma lenergy density of bituminous coal, gasoline, and natural gas (methane) are roughly 25 MJ/kg, 45 MJ/kg, and 36 MJ/m3 (50 MJ/kg), respectively; Their carbon contents are roughly 750g/kg (75%), 875g/kg (85%), and 490g/m3(or 900g/kg, 90%), respectively. Assuming complete combustion, if the same amount of energy is produced (for example, 1 MJ), how much CO2 (in kilogram or mole) will be produced by coal, gasoline, and natural gas, respectively?

Hint: you are asked to calculate the emission factor for coal, gasoline, and natural gas - kg or mole CO2 per 1 MJ of heat (released from complete combustion).