A natural gas with the molar analysis 78% CH4, 13% C2H6, 6% C3H8, 1.7% C4H10, 1.3% N2 burns completely with 60% excess air in a reactor operating at steady state. The molar flow rate of the fuel is 1.5 kmol/h and air is 21% O2 and 79% N2 on a molar basis.1. Determine the molar flow rate of the air, in kmol/h.2. Determine mass flow rate of the air, in kg/h 3. Determine the mole fraction of water vapor in the products