## Wikipedia - Chimica (it) Wikipedia - Costante di equilibrio (it) Wikipedia - Massenwirkungsgesetz (de) Wikipedia - Talk:Equilibrium constant (en) Wikipedia - ثابت توازن (ar) Wikipedia - 平衡定数 (ja) equilibrium constant

https://doi.org/10.1351/goldbook.E02177
Quantity characterizing the equilibrium of a chemical reaction and defined by an expression of the type $$K_{x}=\underset{\begin{array}{c} \text{B} \end{array}}{\Pi }x_{\text{B}}^{\nu _{\text{B}}}$$, where $$\nu _{\text{B}}$$ is the @[email protected] of a reactant (negative) or product (positive) for the reaction and $$x$$ stands for a quantity which can be the equilibrium value either of pressure, fugacity, @[email protected], amount fraction, molality, @[email protected] or reciprocal @[email protected] defining the pressure based, fugacity based, concentration based, amount fraction based, molality based, @[email protected] based or @[email protected] (then denoted $$K^{\unicode{x26ac}}$$), respectively.
Source:
Green Book, 2nd ed., p. 50 [Terms] [Book]