A feed mixture consisting of 35 mol% ethanol, 27 mol% n-propanol, 25 mol% methanol and 13 mol% n-butanol is fed to a distillation column. The molar flow rate of the feed is 2500 kmol/h. Methanol is the most volatile component followed by ethanol and n-propanol, while n-butanol is the least volatile component. 99.7 mol% recovery of methanol in the distillate and a methanol mole fraction of 0.99are desired. Determine the molar flow rate of ethanol in Distillate in kmol/h

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