Question: Q4. (12 points) Using the Van Laar equation and the following data, estimate the total pressure and composition of the vapor in equilibrium with a

Q4. (12 points) Using the Van Laar equation and the following

Q4. (12 points) Using the Van Laar equation and the following data, estimate the total pressure and composition of the vapor in equilibrium with a 20 mol% ethanol (1) solution in water (2) at 78.15C. Data at 78.15C: Vapor pressure of ethanol (1) = 1.006 bar; Vapor pressure of water (2) = 0.439 bar. The activity coefficient at infinite dilution for ethanol = 1.6193, and for water = 1.9523. in an

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