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1、The isobaric VLE data for the methanol + acetone system are tabulated in Table 1; where x1 is the acetone mole fraction. The gas phase of the acetone + methanol system was assumed ideal, and the liquid activity coefficient of component i, approaches unity as xi approaches unity. Please to calculate
2、the activity coefficients and the excess Gibbs free energy at different temperatures, and to construct the diagrams of t-x-y, x-y, lng1-x, lng2-x, GEx/RT x and ln(g1/g2)-x. What conclusion can be obtained from these results?Table 1. Vapor-Liquid Equilibrium Data for Acetone (1)+ Methanol (2) systemx
3、1y1t/Clng1lng2GEx/RTln(g1/g2)0064.60.0910.18761.70.1880.32859.60.2880.39958.10.4050.50256.90.5020.58256.30.5700.64655.90.6850.70255.50.7590.76255.40.8950.89155.61.01.056.2Reference:Sameer Al-Asheh, Fawzi Banat Isobaric Vapor-Liquid Equilibrium of Acetone + Methanol System in the Presence of Calcium BromideJ. Chem. Eng. Data 2005, 50, 1789-1793