D. Problems *Answers to problems with an asterisk are at the back of the book. D1. We are separating a mixture of methanol and water in a flash drum at 1.0 atm pres- sure, Equilibrium data are listed in Table 2-7. a 57 Homework Table 2-7. Vapor-liquid equilibrium data for . methanol water (p = 1 atm) (mol%) Methanol Vapor Temp., C Methanol Liquid 0 2.0 4.0 6.0 8.0 10.0 15.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 95.0 100.0 0 13.4 23.0 30.4 36.5 41.8 51.7 57.9 66.5 72.9 77.9 82.5 87.0 91.5 95.8 97.9 100.0 100 96.4 93.5 91.2 89.3 87.7 84.4 81.7 78.0 75.3 73.1 71.2 69.3 67.6 66.0 65.0 64.5 Source: Perry et al. (1963), p. 13-5. d. We are operating the flash drum so that the liquid mole fraction is 45.0 mol% methanol. L = 1500.0 kmol/h, and V/F=0.2. What must the flow rate and compo- sition of the feed be? e. Find the dimensions of a vertical flash drum for Problem 2.Dic. Data: P. 1.00 g/cm, P = 0.7914 g/cm?, MW. = 18.01, MW. = 32.04. Assume vapors are ideal gas. f. If z = 0.4, p = 1.0 atm, and Tdrum = 77C, find V/F, X. g. If F = 50.0 mol/h, z = 0.8, p = 1.0 atm, and ym=0.892 mole fraction methanol, find m. w and ym V, L, and x