a We are separating a mixture of acetone and ethanol in a distillation column operating at one atmosphere pressure. The column has a total condenser and a partial reboiler. The distillate is 90 mol% acetone, and the bottom is 10 mol% acetone. The reflex is returned as saturated liquid. Use a boil up ratio VN+j/B = 2. Two feeds are fed to the column. The first feed has a flow rate of 75 kmol/h, it is a saturated liquid, and it is 60 mol% acetone. The second feed has a flow rate of 100 kmol/h, it is a two phase mixture that is 60% vapor, and it is 40 mol% acetone. Use the optimum feed location for each feed. Assume CMO. Equilibrium data are given below. XA 0.1 0.15 0.2 0125 0.3 0.35 0.4 0.5 0.6 0.7 0.8 0.9 YA 0.262 0.348 0.417 0.478 0.524 0.566 0.605 0.674 0.739 0.802 0.865 0.929 b. Find the distillate and bottoms flow rates, D and B. Plot the two feed lines and the three operating lines. Step off stages and find the optimum feed location for each stream and the total number of equilibrium stages required c