Problem Statement: A distillation tower, operating at a pressure of 1.2atm, is fed a saturated liquid of composition: 33% n-hexane, 37% n-heptane and 30% n-octane. The distillate product is to possess only 0.01 mole fraction of n-heptane and the bottoms product is to have 0.01 mole fraction of n-hexane. The tower is fitted with a partial condenser and so the distillate product is drawn off as a vapour while all of the condensed liquid is returned to the tower as reflux. The partial condenser may be assumed to operate at equilibrium and the reflux ratio is 1.5R_min. The bottoms product exits the reboiler as a saturated liquid. You may assume negligible pressure drop throughout the tower.