The exhaust from a natural gas heating is expelling combustion products at a rate of 10 mole per minute. On a mass basis, the exhaust gas contains 10% water, 70% CO2, 10% O2 and 10% CO. The molecular mass of these species are 18,44,32,28 g/mol respectively.
1. What is the composition of the flue gas in mole percentage
2. How much water leaves the exhaust gas in grams per minute
3. If for some reason, all the water condenses in the side of the flue stack, what would be the composition of the flue gas on a mass percentage basis.