Ok. I have attempted this problem several times and went about it a couple of different ways and still cannot get a viable answer! the problem is: A gas stream contains 18.0 mole% hexane (C6H14) and the remainder nitrogen. The stream flows to a condenser, where its temperature is reduced and some of the hexane is liquefied. The hexane mole fraction in the gas stream leaving the condenser is 0.0500. Liquid hexane condensate is recovered at a rate of 1.50 L/min. see attached *.doc file for a diagram relating to the problem!!!