free energy

== English == === Noun === free energy (uncountable) (physical chemistry) The energy available in a particular chemical system to do useful work. In more detail: Helmholtz free energy, A: the internal energy of a system minus the product of its entropy and absolute temperature. Gibbs free energy, G: the enthalpy of a system minus the product of its entropy and absolute temperature. Used other than figuratively or idiomatically: see free,‎ energy. free energy suppression (the notion that exotic energy systems are deliberately suppressed in order to protect the fossil fuel industry and suchlike) ==== Synonyms ==== ==== Antonyms ==== ==== Hypernyms ==== ==== Hyponyms ==== ==== Derived terms ==== ==== Translations ==== === References === Jeffrey J. W. Baker with Garland E. Allen (1965), Matter, Energy, And Life, Addison-Wesley Publishing Company, Inc., §5.2, page 53