Ethane is initially mixed with oxygen to obtain a gas containing 80% C2H6 and 20% O2 that is then burned in an engine with 200% excess air. Eighty percent of the ethane goes to CO2, 10% goes to CO and 10% remains unburned. Calculate the composition of the exhaust gas on a wet basis and extent of reaction.(Assume 100% combustion to calculate the excess air feed to the system). Solve the problem by using Molecular balance, atomic balance and with extent of reaction