It is desired to produce an overhead product containing 80 mol% benzene from a feed mixture of 68 mol% benzene and rest toluene using ash

It is desired to produce an overhead product containing 80 mol% benzene from a feed mixture of 68 mol% benzene and rest toluene using flash distillation (i.e., distillation using a single stage/ plate). The process is being conducted at atmospheric pressure. Calculate the moles of liquid and vapor product per 100 moles of feed.