The flame produced by the burner of gas (propane)grill is a pale blue color when it mixes with propane(C3H8) to burn it completely. For every gram of propane that flows through the burner, what volume of air is needed to burn it completely? Assume the temperature of the burner is 473K, the pressure is 1.25 atm, and the mole fraction of O2 in air is 0.21
C3H8 + 5O2 ----- 4H20 + 3CO2