stevestory
Posts: 13407
Joined: Oct. 2005
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By the way, it's actually a treat to have a redneck heritage and work in technical fields. You should see the looks on people's faces when you explain, in a thick southern accent and with your bottom lip jutting out, that the gas won't cool down upon expanding because this here's a free expansion and those are irreversible but adiabatic, so while the entropy increases, the integral of F dV from V1 to V2 is zero, so the temperature can't change so long as it's just hydrogen and the van der Waals terms don't matter much.
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