Gaseous fuel, with a percent molar composition of 90% CH4 and 10% N2, is fed to a burner with 50% excess air and is fully combusted there. The temperature of the fuel and air entering the burner is 298 K, and the temperature of the combustion products coming out of the burner is 850 K. Calculate the Heat (kJ/kmol fuel) removed from the burner under these conditions. (Cp/R=A+BT)