4. (100 pts) A gas stream consisting of n-hexane in methane is fed to a condenser at 60C and 1.2atm. The dew point of the gas (considering hexane as the only condensable component) is 55C. The gas is cooled to 5C in the condenser, recovering pure hexane as a liquid. The effluent gas leaves the condenser saturated with hexane at 5C and 1.1atm and is fed to a boiler furnace at a rate of 207.4L/s, where it is burned with 100% excess air (0.21mol%O2,0.79mol%N2) that enters the furnace at 200C. The stack gas emerges at 400C and 1 atm and contains no carbon monoxide or unburned hydrocarbons. The heat transferred from the furnace is used to generate saturated steam at 10 bar from liquid water at 25C. a. Draw and completely label a flowchart of the process. b. Calculate the mole fractions of hexane in the condenser feed and product gas streams and the rate of liquid hexane condensation (liters condensate/s). c. Calculate the composition of the gas stream leaving the boiler furnace. d. Calculate the rate of generation of steam in the boiler (kg/s)