15- Propane gas flows into a combustion chamber at a rate 250L/min at 2.0 atmand ambient temperature. Air is added to thechamber at 1.0 atm and the same temperature. The gases areignited.
a) To get complete combustion of the propane to carbon dioxideand water three times as much oxygen as is stoichiometricallyappropriate is required. Assuming air is 21% oxygen and 79%nitrogen, calculate the required flow rate of air?
b )Under the conditions in part a, the combustion is notcomplete and a mixture of carbon dioxide and carbon monoxide isproduced. It is determined that 94.0% of the carbon in the exhaustgas is present as carbon dioxide. The remainder is carbon monoxide.Calculate the percent composition of the exhaust gas in terms ofmole fraction of CO, CO2 , O2 , N2 , and H2O. Assume the propane iscompletely reacted and the nitrogen is totally unreacted.
Can you please explain part B? I got 476.190 mL/min for partA.
