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brkomir
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Homework Statement
We have a real gas in an isolated chamber. The potential between the molecules is described as ##\phi (r)=\phi _0e^{-(\frac{r}{\sigma})^{2}}##, where ##\phi _0=5\times 10^{-4}eV## and ##\sigma =5 nm##. At 300 K we have ##10^{24}## molecules per ##m^3##.
Calculate the second virial coefficient. With that gas in an isolated chamber we suddenly change the volume of the chamber. (This process deserves a name after a gentleman http://en.wikipedia.org/wiki/Gustave-Adolphe_Hirn ). How much does the temperature change if the molecules per ##m^3## are now only ##10^{21}##
Homework Equations
The Attempt at a Solution
I'm having no problems with the first part, but massive ones for the second part.
I just can't find a way to calculate the temperature. How do I do that?