5. A waste gas stream flowing at 1000 ft³/min consists of 12% (v/v) CO2, 4% H20 and the
remaining fraction is N2. If this gas stream is blended with 100 ft³/min of gas stream
containing 20.9% O2, 0.004% CO2 with the remaining fraction being N2, what would the
percentage CO2 be in the blended gas stream? You can assume that both gas streams
have the same temperature and pressure, no reactions occur and no water vapor
condenses.