Problem 2. The feed is 60mol% methanol and 40mol% water and is input as a two-phase mixture that flashes so that VF/F=0.3. Feed flow rate is 350kmol/hr. The column is well insulated and has a total condenser. The reflux ratio is 3 . We desire a distillate concentration of 95mol% methanol and a bottoms concentration of 8mol% methanol. Instead of using a reboiler, saturated steam at 1atm is sparged directly into the bottom of the column to provide boil-up (i.e. open steam process). Column pressure is 1atm. Use the given phase equilibrium. Determine: 2.1. Total required equilibrium stages. 2.2. Optimal location for the feed stage