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Pressure-volume isotherms for a Bragg-Williams lattice gas

29 Dec 2007 (Updated 02 Jan 2008)

No BSD License

Computes pressure-volume isotherms for a Bragg-Williams lattice gas

File Information
Description	The program 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 code. A similar treatment using Mathematica can be found at the following link: http://library.wolfram.com/infocenter/MathSource/6623/
Required Products	Optimization Toolbox
MATLAB release	MATLAB 7.0.1 (R14SP1)
Zip File Content
Other Files	BraggWilliams/Bragg_Williams.m, BraggWilliams/jbfill.m, BraggWilliams/pBragg.m, BraggWilliams/zeroBragg.m

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Everyone's Tags	braggwilliams approximation, chemistry, lattice gas, physics, pressurevolume isotherms
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Comments and Ratings (1)
11 Feb 2008	Duane Hanselman	Typical submission from this author. Simply reproduces figures found in a specific journal article. No user settable parameters. No variable descriptions. No help text to explain the code. Promotes poor programming practices to students.

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Updates
02 Jan 2008	added link to Wolfram Library Archive

Tag Activity for this File
Tag	Applied By	Date/Time
chemistry	Housam Binous	22 Oct 2008 09:40:53
physics	Housam Binous	22 Oct 2008 09:40:53
braggwilliams approximation	Housam Binous	22 Oct 2008 09:40:53
lattice gas	Housam Binous	22 Oct 2008 09:40:53
pressurevolume isotherms	Housam Binous	22 Oct 2008 09:40:53

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