Propane is burned in a furnace using air as an oxygen source. For this question we will assume that air is 20% O2 and 80% N2. The flow rate of the air provides a 60% fractional excess of oxygen which allows for complete consumption of the propane. The inlet feed of air and propane to the furnace is at a temperature of 45 [C]. Assume a propane flow rate of 1 mol/min and answer the following questions. Required:
a. Taking a basis of 100 mol C3H8, find amount of air fed at 25% excess.
b. Find the amount (moles) of stack gas.
c. Find the composition of CO2.