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Critical Temperature of argon atoms watch

1. Hey, I'm having a bit of a mental block on the last part [part (f)] of the attached question. It asks to make use of the kinetic and potential [lennard-jones?] energies but I'm not sure how to go about that. Any hints on how to proceed?
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2. Anyone?
3. (Original post by MFAHH)
Hey, I'm having a bit of a mental block on the last part [part (f)] of the attached question. It asks to make use of the kinetic and potential [lennard-jones?] energies but I'm not sure how to go about that. Any hints on how to proceed?
Did you get this sorted?
4. (Original post by Phichi)
Did you get this sorted?
I've not, although I have a sneaking suspicion it's relatively straightforward.
5. what did you get for part e?
If I recall correctly the critical temperature of the gas is defined as the temperature when the derivatives in part (e) are both equal to zero.
You should then have a pair of simultaneous equations which you can solve for T, but I'm afraid I don't see how to involve the kinetic energy, it's been a while.
6. (Original post by james153)
what did you get for part e?
If I recall correctly the critical temperature of the gas is defined as the temperature when the derivatives in part (e) are both equal to zero.
You should then have a pair of simultaneous equations which you can solve for T, but I'm afraid I don't see how to involve the kinetic energy, it's been a while.
Thanks for the reply. Yeah, it's how to factor in the kinetic energy that I'm not sure about. And even the potential. For (e) I just differentiated, and double differentiated, pv=nrt, but when I set them to zero and simultaneously solve them for T, I just end up with T=0 which is no help.

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