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448 09 08 07 ve 06 05 Figure 12.23: . dia gram for ethanol(Icthyl acetate 2) and for chloro form Metabydrofuran 2 both at a constant pressure of l bar. Note that the curves are intentionally unlabeled, but they can be identified based on infor mation presented in Figs. 12.19 through 12.22 04 0.3 02 ---- 0.1 0 0 01 02 03 04 05 0.6 0.7 0.8 0.9 1 liquid-phase 12.29. What is the composition of the vapor phase in equilibrium with cthanol(1)Methyl acetato(2) mixture of the following compositions at P = 1 bar? (a) x=0.1 (b) x1 = 0.2 (C) X=0.3 (d) x = 0.45 (e) x = 0.6 X = 0.8 e) x;=0.9 12.30. What is the composition of the liquid phase in equilibrium with a vapor-phase ethanol(1 Vethyl acetate(2) mixture of the following compositions at P = 1 bar? (a) y = 0.1 (b) y = 0.2 (C) y=0,3 (d) y = 0.45 (e) 10,6 y=0,8 () =0.9 12.31. What is the composition of the vapor phase in equilibrium with a liquid-phase chloro form(H)etrahydrofuran(2) mixture of the following compositions at P = 1 bar? (a) x1 = 0.1 (b) x1 = 0.2 12.7. Problems 449 Si totale (C) xy = 0.3 (d) x = 0.45 (e) x = 0.6 x=0.8 (8) x = 0.9 12.32. What is the composition of the liquid phase in equilibrium with a vapor-phase chloro- form(1)/tetrahydrofuran(2) mixture of the following compositions at P = 1 bar? (a) y = 0.1 (b) y = 0.2 (C) y = 0.3 (d) y = 0.45 (e) y = 0.6 0 y = 0.8 (8) y = 0.9 94 92 90 88 86 84 P (kPa) Figure 12.19: Pxy diagram for vapor/liquid equilibrium of ethanol(1)/ethyl acetate (2) at 70C. 80 78 76 74 72 70 0 0.2 0.3 0.4 0.6 0.7 0.9 0.1 0.8 0.5 X1. 80 78 76 TCC) Figure 12.20: Txy diagram for vapor/liquid equilibrium of ethanol(1)/ethyl acetate (2) at 100 kPa 74 72 70 0 0.1 0.2 0.3 0.4 0.7 0.8 0.9 1 0.5 0.6 * 70 68 66 64 62 60 Figure 12.21: Pxy diagram for vapor/liquid equilibrium of chloroform(1)/tetrahydro- furan(2) at 50C. P (kPa) 58 56 54 52 50 48 46 0 0.1 0.2 0.3 0.4 0.6 0.7 0.8 0.9 1 0.5 . 80 78 76 74 TCC) 72 Figure 12.22: Txy dia- gram for vapor/liquid equilibrium of chloro- form(1)/tetrahydrofuran (2) at 120 kPa. 70 68 66 64 0 0.7 1 0.4 0.6 0.8 0.9 0.1 0.2 0.3 0.5 X