# Van der Waals.py

(Difference between revisions)
 Revision as of 16:04, 30 September 2018Werner (Talk | contribs)← Previous diff Revision as of 16:05, 30 September 2018Werner (Talk | contribs) (OOou)Next diff → Line 1: Line 1: This is the python2 program useful for the homework session This is the python2 program useful for the homework session - of [[ICFP_Stat_Physics_2018|week 04 of my ICFP Lectures on statistical mechanics]]. + of [[ICFP_Stat_Physics_2018|week 04 of my ICFP Lectures on statistical mechanics]]. You can run it directly, or else translate it into the computer language of your choice.

## Revision as of 16:05, 30 September 2018

This is the python2 program useful for the homework session of week 04 of my ICFP Lectures on statistical mechanics. You can run it directly, or else translate it into the computer language of your choice.

```import pylab, numpy
for t in numpy.arange(0.3, 1.5, 0.1):
vval = []
pval = []
for v in numpy.arange(0.34, 4.0, 0.001):
p = 8.0 * t / 3.0 / (v - 0.333333) - 3.0 / v ** 2
vval.append(v)
pval.append(p)
pylab.plot(vval, pval, label='\$T=\$'+ str(t))
pylab.title("van der Waals equation of state")
pylab.xlabel("reduced volume \$v\$")
pylab.ylabel("reduced pressure \$p\$")
pylab.xlim([0.0,3.5])
pylab.ylim([-2.0,4.0])
pylab.legend(loc='upper right')
pylab.savefig('Eq_state_vdw.png')
pylab.show()
```