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Van der Waals gas

  • Thread starter winterwind
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Homework Statement


Calculate the isothermal compressibility and the expansion coefficient of a van der Waals gas. Show, using Euler's chain relation that

[tex]\kappa[/tex]TR = [tex]\alpha[/tex](Vm - b).

Homework Equations


van der Waals equation
virial expansion of state

The Attempt at a Solution


So I have to figure out
-isothermal compressibility of van der Waals gas
-expansion coeffcient of a van der Waals gas
-show that the above equation is true using Euler's chain relation.

I guess the first part has something to do with compressibility factor Z? I used Z = PV/RT and then plugged for p the van der Waals gas law. Probabaly incorrect.

The second and third part I have no idea.
 

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