A.Flue gases consist of 81 % nitrogen, 14% C02, 4.2% 02 and 0.8% CO on volumetric basis. Calculate the density of flue gas mixture at 101.2 kPa and 47°C. B. Air at 420 kPa, 80°C is introduced at the rate of 7.8 kg/min into a flowing air stream having a pressure of 102.2 kPa at 34°C. The pressure down stream from the point of mixing is 101.8 kPa and temperature is 42°C. Determine the mass flow rate of air at 34°C.
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