# Planck function

> negative quotient of Gibbs energy and temperature

**Wikidata**: [Q76364998](https://www.wikidata.org/wiki/Q76364998)  
**Source**: https://4ort.xyz/entity/planck-function


## References

1. ISO 80000-5:2007 Quantities and units — Part 5: Thermodynamics
2. ISO 80000-5:2019 Quantities and units — Part 5: Thermodynamics