A mixture of propane and butane is fed into a furnace where it is mixed with air. The furnace exhaust leaves the furnace at T3=321C,P3=780.0mmHg and contains only N2,O2,CO2, and H2O. The partial pressure of O2 in the exhaust is pO2=25.66mmHg, and the partial pressure of CO2 in the exhaust is pCO2=78.00mmHg. What is the mole fraction of propane in the fuel stream? mole fractio molC3H8/mol What is the mole fraction of water in the exhaust stream? mole fraction ol H2O/mol incorrect What is the dew point temperature of the exhaust gas? dew point temperature