propane reacts with 85% of theoretical air (assume dry air). the product of the incomplete combustion consists of co2, co, h2o and n2. determine: (1) the balanced reaction equation (2) the air-fuel ratio (mass basis) (3) the apparent molar mass of the product (4) if the air is saturated (assume no condensation occurs) after reaction (1 atm), what is the final temperature?