Question 3: At atmospheric pressure, acetone (1) and chloroform (2) form an azeotrope that boils at 64.6C and has a mole fraction of acetone in the liquid of 0.335. The saturation vapour pressures of acetone and chloroform at 64.6C are 1.31 and 0.98atm, respectively: (50 points) (a) Calculate the activity coefficients of acetone and chloroform at the azeotrope. (b) Determine a value for Gex (excess Gibbs free energy) of the azeotrope mixture. (c) plot the 2 vs 2 and G as 1 (d) G1 (partial excess Gibbs energy) at each X1. (e) If Gmu vs 1 at 366.45K is shown in Fig.1, please find out the partial Gibbs free energy at 1=0.3 and 0.7