Question: Answer what is requested, please Show your reasoning on your sheet. 2.12 Activity coefficients for several solutions can be predicted with reasonable accuracy with Margules

Answer what is requested, please

Answer what is requested, please Show your reasoning on your sheet. 2.12

Show your reasoning on your sheet.

2.12 Activity coefficients for several solutions can be predicted with reasonable accuracy with Margules equation given by lnA=xA2[AAB+2(ABAAAB)xA]. (a) Combine the equations of Margules and Vignes to obtain an expression for the difiusion coeffcient as a function of concentration, and (b) calculate the difiusion coefficient for a 50mol% mixture of ethanol-water at 25C. Compare your answer with the value given in Example 2.4, AAB=0.6848, and ABA=0.3781

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