An Ideal Gas Indeed Does Work in Expansion into Vacuum
Chemical Science International Journal · pp. 53–55 · Published 23 Nov 2023
10.9734/CSJI/2023/v32i6870Abstract
Basic thermodynamics is able to treat an actual (non-equilibrium) process as well as the corresponding equilibrium process. An example of such a pair of processes is familiar to every chemical engineer; namely, (Joule) free expansion of a gas and the corresponding equilibrium expansion [1]. Formerly, we thought that an ideal gas does no work in expansion into vacuum. It is shown that such a gas does work. This result is confirmed by experiments.
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