Statements (43)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
thermodynamic potential
|
| gptkbp:alsoKnownAs |
gptkb:Gibbs_function
gptkb:Gibbs_energy |
| gptkbp:appliesTo |
closed systems
constant pressure and temperature isobaric processes isothermal processes |
| gptkbp:category |
physical chemistry
thermodynamics |
| gptkbp:changeIndicates |
ΔG < 0: spontaneous process
ΔG = 0: equilibrium ΔG > 0: non-spontaneous process |
| gptkbp:definedIn |
G = H - TS
|
| gptkbp:dimensions |
gptkb:energy
|
| gptkbp:form |
dG = dH - TdS - SdT
|
| gptkbp:formulaForChange |
ΔG = ΔH - TΔS
|
| gptkbp:hasUnit |
gptkb:joule
kilojoule |
| https://www.w3.org/2000/01/rdf-schema#label |
Gibbs free energy
|
| gptkbp:introducedIn |
1870s
|
| gptkbp:location |
G is Gibbs free energy
H is enthalpy S is entropy T is temperature |
| gptkbp:measures |
joule (J)
|
| gptkbp:minimumAt |
chemical equilibrium
|
| gptkbp:namedAfter |
gptkb:Josiah_Willard_Gibbs
|
| gptkbp:predicts |
spontaneity of a process
|
| gptkbp:relatedTo |
gptkb:organization
gptkb:Helmholtz_free_energy chemical potential enthalpy |
| gptkbp:symbol |
G
|
| gptkbp:usedFor |
calculating maximum reversible work
maximum non-expansion work reaction feasibility |
| gptkbp:usedIn |
chemistry
physics chemical thermodynamics |
| gptkbp:bfsParent |
gptkb:Statistical_Thermodynamics
gptkb:Helmholtz_free_energy gptkb:Josiah_Willard_Gibbs |
| gptkbp:bfsLayer |
5
|