A gas stream contains 18.0% hexane (C6H14)and the remainder Nitrogen. The steam flows to a condenser, whereits temperature is reduced and some of the hexane is liquefied. Thehexane mole fraction in the gas stream leaving the condenseris .0500. Liquid hexane condensate is recovered at a rate of 1.50L/min.

What is the flow rate of the gas stream leaving the condenser inmol/min? (Hint: First calculate the molar flow rate of thecondensate and note that the rates at which hexane and nitrogenenter the unit must equal the total rates at which the leave in thetwo exit streams.)

I already found the molar flow rate of the liquid to be 12.1mol/min.

Any help at all would be greatly appreciated. I can't figure outhow to find the initial rate, because I don't think 12.1 is simply13% of the initial. If you could just help me get past this step, Ithink I could get it from there. Thanks!

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