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The state function G=HβTS, whose decrease at fixed temperature and pressure bounds non-expansion work and whose minimum characterizes stable equilibrium.
source: Has state / property description; target: State / property description of
Authored annotation
assigned a reaction Gibbs-energy change
Authored explanation
An electrochemical cell reaction has a Gibbs-energy change related reversibly to cell potential under stated temperature, pressure, activities, electron count, and sign conventions; losses reduce operating voltage.
How to interpret this relation type
The target represents a state, property, observable, or state-dependent description associated with the source system or theory.
source: Describes / governs; target: Described / governed by
Authored annotation
minimum under constraints
Authored explanation
Stable equilibrium minimizes the appropriate Gibbs energy subject to material, charge, and phase constraints at fixed temperature and pressure.
How to interpret this relation type
A theory, law, or interaction describes the behavior of the target within a stated regime. The edge detail must state important limits or qualifications.
source: Contributes to; target: Contains theory component
Authored annotation
supplies the fixed-T,p potential
Authored explanation
Gibbs energy supplies chemical thermodynamics with a natural potential for many closed-system laboratory processes at controlled temperature and pressure, subject to the stated constraints.
How to interpret this relation type
The source supplies a substantive formal ingredient, dynamical sector, law, field content, or mechanism of the target theoretical framework.
source: Has state / property description; target: State / property description of
Authored annotation
specifies standard-state reaction change
Authored explanation
Standard reaction Gibbs energy is assembled from the stoichiometrically weighted chemical potentials of reactants and products evaluated in declared standard states.
How to interpret this relation type
The target represents a state, property, observable, or state-dependent description associated with the source system or theory.