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11 For the following possible alternative automobile fuels, express their higher heating value(HHV) in Btu/gal: (a) Methanol (CH3OH), density 6.7 lb/gal, H° - -238.6 kJ/mol (b) Ethanol (C2H3OH), density 6.6

lb/gal, H° --277.6 kJ/mol

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