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 Gma vs 1 (d) G1a (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