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A liquid containing 60 mol% toluene (Tb = 110 °C) and 40 mol% benzene (Tb =...

A liquid containing 60 mol% toluene (Tb = 110 °C) and 40 mol% benzene (Tb = 80 °C) is continuously distilled in a single-equilibrium-stage unit at atmospheric pressure. What percentage of benzene in the feed leaves in the vapour if 90% of the toluene entering in the feed leaves in the liquid. Assume a relative volatility of 2.3 and obtain the solution graphically. The solution may require an iterate approach.

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