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A thermodynamic potential (or more accurately, a thermodynamic potential energy) [1] [2] is a scalar quantity used to represent the thermodynamic state of a system. Just as in mechanics , where potential energy is defined as capacity to do work, similarly different potentials have different meanings.
In thermodynamics, the Helmholtz free energy (or Helmholtz energy) is a thermodynamic potential that measures the useful work obtainable from a closed thermodynamic system at a constant temperature . The change in the Helmholtz energy during a process is equal to the maximum amount of work that the system can perform in a thermodynamic process ...
The grand potential or Landau potential or Landau free energy is a quantity used in statistical mechanics, especially for irreversible processes in open systems. The grand potential is the characteristic state function for the grand canonical ensemble .
Strictly speaking, the bulk modulus is a thermodynamic quantity, and in order to specify a bulk modulus it is necessary to specify how the pressure varies during compression: constant-temperature (isothermal ), constant-entropy (isentropic), and other variations are possible.
In thermodynamics, the Gibbs free energy (or Gibbs energy as the recommended name; symbol ) is a thermodynamic potential that can be used to calculate the maximum amount of work, other than pressure–volume work, that may be performed by a thermodynamically closed system at constant temperature and pressure.
Electrochemical potential; Electrofusion welding; Electronic entropy; Endoreversible thermodynamics; Energy accounting; Energy carrier; Energy quality; Enthalpy–entropy chart; Enthalpy–entropy compensation; Evaporative cooling (atomic physics) Exact differential; Excess chemical potential
This page was last edited on 20 December 2020, at 23:29 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
This is a whole other can of worms. You can develop thermodynamic equations based on energy, in which case all thermo potentials have units of energy, and since entropy does not, it is not a thermodynamic potential in the energy development. I am not too familiar with the entropy development, but it may assume the role of a "potential" in that.