Consider the system water(1) + methylethylketone(MEK)(2) + acetic acid(AA)(3) at 299.85 K. For a ternary LLE system, estimate tie lines at x₃^α = 0.005, 0.01, 0.02, using UNIQUAC, where the parameter values are r = [0.92, 3.2479, 2.2024], q =[1.40, 2.876, 2.072], and the a values (in K ) are a₁₂ = -2.0882, a₂₁ = 345.53, a₁₃ = 254.15, a₃₁ = -301.02, a₂₃ = -254.13, a32 = -4.5537. Let α be the water-rich phase. Plot the results on rectangular coordinates, using x₁ as the abscissa and x3 as the ordinate. Connect the tie lines on the plot. Add the experimental tie lines (Table 14.3) to the same plot using different symbols.

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Table 14.3 Water (1) + Methylethylketone (MEK) (2) + Acetic Acid(3) System at T = 299.85 Kª a phase mol% Bphase mol% 2 2 92.689 91.644 90.839 90.681 1 7.311 8.049 8.623 8.733 0. 0.307 0.538 0.586 3 36.383 38.601 40.531 41.835 1 63.617 60.547 57.986 56.287 0. 0.851 1.482 1.878 3