Isn't it possible to come up with a transformation of an ideal gas such that [itex]dS < 0[/itex], where [itex]S[/itex] is the entropy of the gas? For example, if we remove heat [itex]dQ[/itex] from the gas (e.g., by bringing the gas into contact with a cold reservoir), doesn't that DECREASE the entropy of the gas?(adsbygoogle = window.adsbygoogle || []).push({});

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# Question about entropy

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