For example, the Gibbs free energy is used when considering processes that occur under constant pressure and temperature conditions whereas the Helmholtz free energy is used when considering processes that occur under constant volume and temperature conditions.
Na primer, Gibsova slobodna energija se koristi kad se razmatra proces koji se odvija pod uslovima konstantnog pritiska i temperature, dok se Helmholcova slobodna energija koristi pri razmatranju procesa koji se odvijaju pod uslovima konstantne zapremine i temperature.