A mixture of propane and n‐hexane at 43.5 psi is to be separated.

a) Generate xy‐plot for propane for this mixture at the given pressure.  Use data in the DePriester charts.

b) If 40% of the 30 mol% feed is vaporized, what are the liquid and vapor mole fractions. Also, what is the drum temperature?

c) If the feed 60 mol% propane and the vapor stream is 80 mol% propane, what is the value of V/F?