3.) Propane (C3H8) is burned continuously in a furnace with 10% excess air. Normally, the furnace would operate such that only complete combustion occurs, but unfortunately there is incomplete combustion as well.

a) Write and balance the two equations for the reactions that are occurring in the furnace.

b) Taking a basis of 100 mol/h propane, determine the amount of air fed to the furnace in mol/h.

c) The percent conversion of propane is 90%. Of the propane that reacts, 80% combusts via complete combustion and 20% combusts via incomplete combustion. Does this information change the calculation for the amount of air fed to the furnace? Explain why or why not.

d) All of the species leave in a single effluent stream (unreacted propane and oxygen, nitrogen and all products). Determine the wet basis and the dry-basis composition of the exiting stream (use the information for conversion and the %s of propane reacting in the desired and undesired reaction.

e) What is the yield of CO2 and the selectivity of CO2 to CO?