Combustion. Hydrogen (H2) gas is burned in an isobaric steady-flow burner with 63% excess air. The air and fuel enter the burner at 25 C and the combustion products leave at 727C. Assuming that the water leaving the burner is in the vapour phase, calculate how much heat in kJ per 1 kg of fuel is released when combustion is complete? Provide the answer to five significant figures and enter the numerical value only (e.g. 1234.5, 12345, 123450, 1234500, but not 123450 kJ kg). Round your answer to 5 significant figures. Add your answer