Example 3 Equimolar mixture of two liquids, benzened n-hexane at 50C is in contact with air. The following are the excess properties for this solution at this T: Excess enthalpy of mixing* $26.4J/mol Excess Entropy of mixing * 1.4925/ml i 1. Evaluate the expected activity coefficient for A 2 B for this equimdar mixture . What happens to the activity coeficient if 70 mol % benzene is mixed Example 3 Equimolar mixture of two liquids, benzened n-hexane at 50C is in contact with air. The following are the excess properties for this solution at this T: Excess enthalpy of mixing* $26.4J/mol Excess Entropy of mixing * 1.4925/ml i 1. Evaluate the expected activity coefficient for A 2 B for this equimdar mixture . What happens to the activity coeficient if 70 mol % benzene is mixed