Calculate the LLE in the system 1-butanol(1) + water(2) + methanol(3) at 288.15 K, using UNIQUAC with the following parameters: r = [3.4543, 0.92, 1.4311]; q = [3.052, 1.4, 1.432]; and the a values (in K) are a₁₃ =355.54; a₃₁ =164.09; a₁₂ =-82.688; a₂₁ = 443.56; a₃₂ = -85.451; a₂₃ = -321.92; and compare graphically with the data from Table 14.4.

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Table 14.4 1-Butanol(1) + water (2) + methanol(3) at 288.15 Kª as reported by Mueller a phase mol% ß phase mol% 2 2 2.115 2.319 2.548 2.966 4.043 5.171 1 95.071 92.876 91.304 89.460 86.874 85.094 2.813 4.804 6.148 7.574 9.083 9.736 3 45.254 41.183 35.997 30.372 23.296 18.482 1 51.598 53.459 56.276 59.851 65.170 69.704 3.148 5.358 7.727 9.777 11.534 11.814 3