The entropy of a gas is an example of an adiabatic invariant.
Notes on verification
Confirmed by multiple independent peer-reviewed/arXiv sources and consistent with established statistical mechanics theory; entropy's constancy under quasi-static adiabatic processes is a well-known textbook result linking thermodynamics to classical mechanics' adiabatic invariants.
Sources
- Adiabatic invariant (en.wikipedia.org)
- https://arxiv.org/pdf/1607.05322 (arxiv.org)
- https://grokipedia.com/page/Adiabatic_invariant (grokipedia.com)
- https://arxiv.org/pdf/2203.07262 (arxiv.org)
- https://arxiv.org/pdf/1906.12041 (arxiv.org)