D Question 5 7 pts Methane (CH4) is burned with 50 percent excess air in a constant pressure burner. The air and fuel enter this burner steadily at standard conditions and the products of combustion leave at 227°C. CH4 25°C Combustion chamber Products 227 °C 50% access air 25°C P-1 atm fill in the blanks henthapy formation h at 298K hat 500K kJ/kmol CH4 0 (A-26) 02 0 14770 (A-19) N2 0 8669 14851 H20 -241820 9904 (A-23) CO2 9364 17678" (A-26)