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Publisher Information - 17.11.2008

Physical Properties Sources Index (PPSI)

Helmholtz Energy

Helmholtz Energy
Definition:State function A that is derived from the second law of thermodynamics: A = U - TS, where U represents the internal energy, T the thermodynamic temperature and S the entropy, respectively.
Units:J
Symbol:A
F
Scope note:valid for constant volume V
Synonyms:Helmholtz Function
Translation: DEHelmholtz-Energie
FREnergie de Helmholtz

Sources

TitleAuthor(s)MediumLocationRankSorted ascendingQualityRatingQuantitySource typeSystems
Landolt-Börnstein: 6. Aufl. Vol. 2 Part 4: Kalorische Zustandsgrössen = Caloric Quantities of StateSchäfer Klaus ; Lax EllenPrint8 B12
4.5
Data (measured)
Detherm Thermophysical Properties of Pure Substances & MixturesOnlineOnline
(Pay per use)
31
3
Data (measured)
Physikalische ChemieAtkins Peter W.Print189 C101
0
Definition
Grössen, Einheiten und Symbole in der Physikalischen ChemieIUPACPrint189 F101
0
Definition
IUPAC Gold BookOnlineOnline
(Free)
101
0
Definition
Römpp OnlineOnlineOnline
(Subscription)
101
0
Definition

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Properties
  Chemical Thermodynamics
    Energies
      Helmholtz Energy
        Helmholtz Energy of Formation