Question: this is mass transfer question .. solve full please Q2: A fmetionating column is reqaired to distill a liquid containing 25 per cent benzene (CH6)

this is mass transfer question .. solve full please

Q2: A fmetionating column is reqaired to distill a liquid containing 25 per cent benzene (CH6) and 75 per cent toluene (C7H8) by mass, to give a product of 90 per cent benzene. A reflux ratio of 3.5 is to be used, and the feed will enter at its boiling point. If the plates used are 100 per cent efficient, calculate by the Lewis-Sorel method the composition of liquid on the third plate, and estimate the number of plates required using the MeCabe-fiele method

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