A vapor at \(1.0 \mathrm{~atm}\) that is \(60 \mathrm{~mol} \%\) acetone and \(40 \mathrm{~mol} \%\) ethanol is cooled until the first drop of liquid condenses. What is the mol fraction of the first drop of liquid, and what is the temperature? Be as accurate as you can. Equilibrium data are in problem 4.D7.

Problem 4.D7.

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D7.* A distillation column with a total condenser is separating a feed that is 30 mol% acetone from ethanol. Distillate xD = 0.90, and bottoms xB = 0.13, both mole fractions acetone. Assume CMO is valid. L/V = 0.8. Boilup ratio is