A mixture of 100 kmoles of 45 mol% acetone, 30 mol% chloroform, and 25 mol% benzene is charged at pressure of 101.3 kPa to a batch rectifier, consisting of a partial reboiler, a column containing the equivalent of 10 equilibrium stages, and a total condenser. After establishing a total-reflux condition, the column will begin a sequence of two operating steps, each at a distillate flow rate of 2 h o l h and a reflux ratio of 10. The durations will be 13.3 hours for Step 1 and 24.2 hours for Step 2. Neglect pressure drops and the liquid holdup in the condenser and the column. Using a process-simulation program with the UNIFAC method for liquidphase activity coefficients, determine the mole-fraction composition and amount in kmoles of each of the three cuts.