An LP gas (Liquid Petroleum) is composed of 90% C4H10 (Butane) and 10% C3H6 (Propane) at 298 K and combusts with air at the same temperature. The volumetric analysis of the combustion products, found at a pressure of 1 bar, on a dry basis is: 6% CO2, 0.25% CO, 11.65% O2 and 82.1% N2. Determine:

A) Combustion reaction balance

B) Air-Fuel Ratio (AF) on a mass basis.

C) Percentage of theoretical air used

D) Stoichiometric combustin gas temperature

E) Higher and lower heating value of combustion