| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Helmholtz function | Aerospace | A mathematically defined thermodynamic function of state, the decrease in which during a reversible isothermal process is equal to the work done by the system.the Helmholtz function is a = u - Ts where u is specific internal energy; T is Kelvin temperature; and s is specific entropy. By use of the first law of thermodynamics for reversible processes, da = -s dT - dw where dw is the work done per unit mass by the system. Also called Helmholtz free energy, work function. Compare Gibbs function. Symbol a. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
