= = - The following equations are given by Sebastiani and Lacquaniti [Chem. Eng. Sci., 22, 1155 (1967)] for the liquid-phase activity coef- ficients of the water (W)-acetic acid (A) system. log yw = x [A + B(4xw 1) + C(Xw xx)(6Xw 1)] log A =x*(A + B(4x - 3)+ C(Xw -x2(6xx - 5)] 64.24 A = 0.1182 + T(K) 43.27 B=0.1735 - T(K) C = 0.1081 - Find the dew point and bubble point of the mixture xw = 0.5, xa = 0.5, at 1 atm. Flash the mixture at a temperature halfway between the dew and bubble points. The final step asks you to flash the mixture at a particular temperature: Determine V/F and the compositions in the two phases. To complete this problem, you will need to find equations that relate the vapor pressure and temperature for water and acetic acid