Question: Given the Margules expression, GE /(RT) = (A21 x1 + A12 x2 ) x1 x2 i. Show the calculations to obtain the ln i expressions.

Given the Margules expression, GE /(RT) = (A21 x1 + A12 x2 ) x1 x2 i. Show the calculations to obtain the ln i expressions. ii. Then calculate the activity coefficients, i , using the expressions obtained above for: The MEK (1) + toluene (2) system at 50 oC, A21 = 0.198 ; A12 = 0.372 x1 = 0.4232, y1 = 0.6815, P = 24.01 kPa

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