Liquid propane (C3H8()) enters a combustion chamber at 25C and 1 atm at a rate of 0.4

Question:

Liquid propane (C3H8(ℓ)) enters a combustion chamber at 25°C and 1 atm at a rate of 0.4 kg/min where it is mixed and burned with 150 percent excess air that enters the combustion chamber at 25°C. The heat transfer from the combustion process is 53 kW. Write the balanced combustion equation and determine
(a) The mass flow rate of air;
(b) The average molar mass (molecular weight) of the product gases;
(c) The average specific heat at constant pressure of the product gases; and
(d) The temperature of the products of combustion.