1. A liquid mixture consisting of 65 volume % ethanol and the balance water is fed to a distillation column at 250 kg/h. The top product has an unknown composition and leaves the column at 185.5 kg/h. The bottom product is analysed and found to contain 93.0 wt% water. (a) Draw and label the flowchart of the above process.  (b) Calculate the mass fractions of the feed components. It may be assumed that the volumes of the components are additive.  (c) Calculate the flow rate of ethanol in the top product stream, in mol/min.  (d) If it is desired to produce 800 lb of top product stream under the same separation conditions, calculate the required amount of feed in lb.  Component Molecular,weight Specific gravity: Ethanol 46,0.789  Water 18, 1.00

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