Question: Methane (CH4) is burned completely with 80 percent excess air during a steady-flow combustion process. If both the reactants and the products are maintained at

Methane (CH4) is burned completely with 80 percent excess air during a steady-flow combustion process. If both the reactants and the products are maintained at 25°C and 1 atm and the water in the products exists in the liquid form, the heat transfer from the combustion chamber per unit mass of methane is
(a) 890 MJ/kg
(b) 802 MJ/kg
(c) 75 MJ/kg
(d) 56 MJ/kg
(e) 50 MJ/kg

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