SYSTEM OPERATE AT TEMPERATURE 308.15 K

X1 P (kPa) 85.265 82.202 76.719 72.422 68.005 65.096 59.651 56.833 53.689 51.620 50.455 49.926 49.720 49.624 0 0.0579 0.1665 0.2482 0.3322 0.388 0.5036 0.5749 0.6736 0.7676 0.8476 0.9093 0.9529 1 yi 0 0.0253 0.0804 0.1314 0.1975 0.2457 0.3686 0.4564 0.5882 0.7176 0.8238 0.9002 0.9502 1 GE The data are well correlated by the three-parameter Margules equation (an extension of Eq (13.39) RT = (A21*1 + A12*2 - CX*2*1*2 GE RT = (421*1 +A12*2)*1*2 (13.39) Implied by this equation are the expressions: xz (A12 + 2(A21 - A12 - C\x + 3Cx] In y2 = x [A21 + 2(A12 A21 - C)x2 + 3Cx3] In 71 (a) Basing calculations on Eq. (13.24), find the values of parameters A12, A21, and C that provide the best fit of GIRT to the data. (b) Prepare a plot of in yy. In y3, and GEN(X2XRT) vs. X, showing both the correlation and experimental values. (c) Prepare a Pxy diagram (see Fig. 13.8(a)] that compares the experimental data with the correlation determined in (a). (d) Prepare a consistency-test diagram like Fig. 13.9