Consider the combustion of a fuel mixture made up of 87.8% ethanol (C,H,OH) gas plus 12.2% heptane (C7H16) gas on a mass basis. The fuel mixture is burned with 115% theoretical air in a steady flow process. The reactants enter the combustion chamber at 25C and 100 kPa] (standard conditions). The products exit at 46.85C (320 [K]) and 100 [kPa]. Assume that there is no CO (Carbon Monoxide) in the products. Determine the heat transfer per kg of fuel mixture.