free energy


noun Thermodynamics.

British Dictionary definitions for free energy

free energy

noun

a thermodynamic property that expresses the capacity of a system to perform work under certain conditions See Gibbs function, Helmholtz function

Medical definitions for free energy

free energy

n.

A thermodynamic quantity that is the difference between a system's internal energy and the product of its absolute temperature and entropy; the portion of total energy of a natural system that can be used for work.

Scientific definitions for free energy

free energy

A thermodynamic quantity that is the difference between the internal energy of a system and the product of its absolute temperature and entropy. Free energy is a measure of the capacity of the system to do work. If its value is negative, the system will have a tendency to do work spontaneously, as in an exothermic chemical reaction. Free energy is measured in kilojoules per mole. Also called Gibbs free energy