distillation column

(25 points) A distillation column with a total condenser and partial reboiler is separating acetone (the more volatile component) from ethanol at 1 atmosphere. As pictured, there are two feeds with flow rates F1=100mol/hr and F2=200mol/hr. Feed 1 has XF1=0.7 and is a saturated liquid. Feed 2 has xF2=0.4 and is a superheated vapor where approximately 1 mole of liquid will vaporize on the feed stage for each 10 moles of feed. We desire xD=0.95 and xW=0.05.R= 2Rmin.. Use Feed 1 to determine Rmin. Constant molar overflow (CMO) is valid. How many stages are needed to achieve this separation and what is the optimal feed stage for Feed 1 ? apor-liquid equilibrium for the acetone/ethanol system at 1 atmosphere, where x is the mole fraction of etone in the liquid phase and y is the mole fraction of acetone in the vapor phase