Quantity defined by \(K^{\,\unicode{x26ac}} = \text{e}^{-\Delta _{\text{r}}G^{\,\unicode{x26ac}}/R\ T}\) where \(\Delta _{\text{r}}G^{\,\unicode{x26ac}}\) is the standard reaction Gibbs energy, \(R\) the @G02579@ and \(T\) the @T06321@. Some chemists prefer the name thermodynamic equilibrium constant and the symbol \(K\).
Green Book, 2nd ed., p. 50 [Terms] [Book]
See also:
PAC, 1994, 66, 533. (Standard quantities in chemical thermodynamics. Fugacities, activities and equilibrium constants for pure and mixed phases (IUPAC Recommendations 1994)) on page 548 [Terms] [Paper]