Question 279959

 A furnace is fed with a gaseous fuel having the composition: 50% CO, 30% H2, 5% CH4, 5% C2H6 and 10% O2. It is burned in the presence of dry air that is 50% in excess for combustion. Assuming complete combustion, determine a) the composition of the combustion gases and b) the cubic feet of dry air per lbmol of fuel gas at 60 degF and 750 mmHg.