23:12 Chegg content://org.teleg + 5G 5G 80% New question A feed of 60 mol% methanol in water at 1 atm is to be separated by dislation into a liquid distilate containing 98 mol% methanol and a bottom containing 96 mol% water. Enthalpy and equilibrium data for the mixture at 1 atm are given in Table Q2 below. Ask an expert (a) Devise a procedure, using the enthalpy-concentration diagram, to determine the minimum number of equilibrium trays for the condition of total reflux and the required separation. Show individual equilibrium trays using the the lines. Comment on why the value is Independent of the food condition. Recent My stuff Mol% MeOH, Saturated vapour Table Q2 Methanol-water vapour liquid equilibrium and enthalpy data for 1 atm Enthalpy above C˚C Equilibrium dala Mol% MeOH in Saturated liquid TC kJ mol T. "Chk kot) Liquid T, "C 0.0 100.0 48.195 100.0 7.536 0.0 0.0 100.0 5.0 90.9 47,730 928 7,141 2.0 13.4 96.4 Perks 10.0 97.7 47,311 87.7 8,862 4.0 23.0 93.5 16.0 96.2 46,892 84.4 6,029 6.0 30.4 91.2 20.0 94.8 48.520 6,420 36.5 89.3 30.0 91.6 45,683 78.0 6.094 100 41.8 87.7 40.0 44915 75.3 5.906 150 51.7 844 Learning lab 50.0 84.9 44.124 73.1 5,745 200 60.0 80.9 43,380 71.2 5.006 30.0 579 81.7 06.5 78.0 70.0 76.6 69.3 5,513 40.0 72.9 75.3 800 72.2 41,821 5,420 50.0 779 73.1 900 68.1 41.124 5,327 60.0 825 712 100.0 64.5 40.449 64.5 5.234 700 87.0 69.3 80.0 91.5 67.6 NB. MeOH methyl alcohol 90.0 95.8 66.0 95.0 97.9 65.0 100.0 100.0 64.5 Show Image Transcript Here's the best solution from Chegg's library Solution Answered by a Chemical engineering expert 31 SOLUTION:As per the given data The bubble point temperatures of distillate and bottoms are needed Ans(1): Given that, the mole fraction of methanol in distillate (xD) = 0.98 That is molefraction in vapour And also given that, corresponding temperatures for te given molefraction data as For 0.979 molefraction of methanol in vapour. corresponding temperature is 650C For 1 molefraction of methanol in vapour, corresponding temperature is 64.5deg C So, for 0.98 molefraction of methanol in vapour. the corresponding bubble point temperature is T Therefore, T-64.98deg C Ans(2): Given that, the mole fraction of methanol in bottoms (xw) = 1-0.96 0.04 (Since, the mole fraction of water in bottoms is 0.96) For 0.04 molefraction of methanol in bottoms (liquid), corresponding bubble point temperature is 93.5deg C Any follow-up questions? EN-US V Code age Preferences instant responses come from subject matter exports, Al models trained on Chogg's learning content, or Open Automated chats are recorded & may be used to improve your experience. Please don't share sensitive into 0