5. A 50 mol\% methanol 50mol% water mixture at 20C is partially evaporated and flashed into a drum at 1 atm to obtain a vapor and a liquid stream. a) If we want to have a vapor stream flow rate that is 50% of the feed flow rate, what should be the temperature in the flash drum? What will be the composition of the vapor and liquid streams? b) If we want to have a vapor phase composition that is 75mol% methanol, what should be the temperature of the flash drum? What will be the vapor flow rate in this case? c) What is the maximum methanol concentration we can achieve in this system? Will it be in the vapor phase or in the liquid phase? d) What is the maximum water concentration we can have? What will be the flow rate? Vapor-liquid equilibrium data for methanol-water system at 1atm are given on the attached sheet