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Work in a two-compartment system

The problem is that if the piston is free to move under a finite initial pressure difference, then the resulting process is not quasi-static; which is to say, the pressures aren't well-defined ...
march's user avatar
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0 votes

Why Gifford-Mcmahon cycle's Refrigeration Effect is $Q=V(P_1-P_2)$?

It's from the first law of thermodynamics! This says that ideal refrigeration is $$\Delta U = Q_\mathrm{c}-W$$ Where $\Delta U$ is the change in internal energy, $Q_\mathrm{c}$ is the cooling energy ...
Patrick's user avatar
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2 votes
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Why doesn't gas usually contract in volume?

On the other hand, if I know the resulting gas in volume $2V$, I can time reverse so that I know the initial configuration and vice versa. If you know all positions and velocities of the particles, ...
Ruffolo's user avatar
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1 vote

SI Units for areas and volumes

I can kind of see where your question is coming from. But just off the top of my head, consider the following issue that can arise, as one example probably out of many similar ones: The SI base units ...
Amit's user avatar
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