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the azeotrope of a binary mixture, being an important point on a mixture phase diagram, is often used for parameter estimation. To that end, use the azeotropic information for the

acetone (1) + cyclo-hexane (2) system at 308.15 K to deter-mine the A parameter of the 1-parameterMargules equation. Then plot the Pxy predictions from this model and compare it to the experimental data in Table P11-2 20. Note that you will need to plot the experimental data first to estimate the location of the azeotrope.

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