(Solution) - A 25 mol mixture of acetone A in water W -(2025 Original AI-Free Solution)

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A 25 mol% mixture of acetone (A) in water (W) is to be separated by distillation at an average pressure of 130 kPa into a distillate containing 95 mol% acetone and a bottoms containing 2 mol% acetone. The infinite-dilution activity coefficients are

Calculate by the Fenske equation the number of equilibrium stages required. Compare the result to that calculated from the McCabe- Thiele method. Is the Fenske equation reliable for thisseparation?