# Joule expansion

> irreversible thermodynamic process in which a volume of gas expands into a vacuum

**Wikidata**: [Q1109469](https://www.wikidata.org/wiki/Q1109469)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Joule_expansion)  
**Source**: https://4ort.xyz/entity/joule-expansion


## References

1. Freebase Data Dumps. 2013