A feed of a of in water is distilled continuously at 1 atm. The feed has q = 0.95. The distillate required is , representing 80% recovery of the alcohol in the feed. A total condenser is used to produce distillate as and a partial reboiler to provide the boilup as saturated vapour. Feed is introduced onto the optimal stage. Vaporliquid equilibrium data are given in Table Q1 below.
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