1. A 100 kmol/h of saturated liquid of methanol-water mixture is fed from the top of a distillation column. The feed contains 40 mol % of methanol and bottom product contains 10 mol% of methanol . If boil-up ratio (V.) is 3, calculate number of stage, bottom and top flow rate and its composition (3 marks) 3 1 Methanol-Water 0.9 0.8 0.7 0.6 > 0.5 0.4 0.3 0.2 0.1 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 X 1