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Pressure-volume isotherms for a Bragg-Williams lattice gas
Author

Housam Binous
Organization: KFUPM
Department: Chemical Engineering
URL: http://sites.google.com/site/homepageofdrhousambinous/
Revision date

2006-11-09
Description

The notebook shows how to plot figure 14.4 page 248 presented in T. L. Hill, An Introduction to Statistical Thermodynamics, Dover, New York, 1986. The Bragg-Williams approximation gives pressure-volume isotherms similar to those obtained using the van der Waals equation and it predicts first-order phase transition. We use the symmetry condition to draw the horizontal stable equilibrium path. We can also use the thermodynamic equal-area theorem as shown at the end of the notebook.
Subjects

*Engineering > Chemical Engineering
*Science > Chemistry
*Science > Physics > Thermodynamics and Statistical Mechanics
Keywords

Bragg-Williams approximation, lattice gas, pressure-volume isotherms, thermodynamic equal-area theorem, symmetry condition, first-order phase transition, statistical thermodynamic
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Bragg-Williams.nb (118.4 KB) - Mathematica Notebook