?Given below are values of \(G^{E} / \mathrm{J} \cdot \mathrm{mol}^{-1}, H^{E} /

Chapter 10, Problem 10.28

(choose chapter or problem)

Given below are values of \(G^{E} / \mathrm{J} \cdot \mathrm{mol}^{-1}, H^{E} / \mathrm{J} \cdot \mathrm{mol}^{-1}, \text { and } C_{P}^{E} / \mathrm{J} \cdot \mathrm{mol}^{-1} \cdot \mathrm{K}^{-1}\) for some equimolar binary liquid mixtures at 298.15 K. Estimate values of \(G^{E}, H^{E}, \text { and } S^{E}\) at 328.15 K for one of the equimolar mixtures by two procedures: (I) Use all the data; (II) Assume \(C_{P}^{E}=0\). Compare and discuss your results for the two procedures.

(a) Acetone/chloroform: \(G^{E}\) = − 622, \(H^{E}\) = − 1920, \(C_{P}^{E}\) = 4.2.

(b) Acetone/n-hexane: \(G^{E}\) = 1095, \(H^{E}\) = 1595, \(C_{P}^{E}\) = 3.3.

(c) Benzene/isooctane: \(G^{E}\) = 407, \(H^{E}\) = 984, \(C_{P}^{E}\) = − 2.7.

(d) Chloroform/ethanol: \(G^{E}\) = 632, \(H^{E}\) = − 208, \(C_{P}^{E}\) = 23.0.

(e) Ethanol/n-heptane: \(G^{E}\) = 1445, \(H^{E}\) = 605, \(C_{P}^{E}\) = 11.0.

(f ) Ethanol/water: \(G^{E}\) = 734, \(H^{E}\) = − 416, \(C_{P}^{E}\) = 11.0.

(g) Ethyl acetate/n-heptane: \(G^{E}\) = 759, \(H^{E}\) = 1465, \(C_{P}^{E}\) = − 8.0.

Text Transcription:

G^E/J cdot mol^-1, H^E/J cdot mol^-1, and C_P^E /J cdot mol^-1 cdot K^-1

G^E, H^E, and S^E

C_P^E = 0

G^E

H^E

C_P^E