equilibrium constant

noun
(chemistry) the ratio of concentrations when equilibrium is reached in a reversible reaction (when the rate of the forward reaction equals the rate of the reverse reaction)
Topics: ↑chemistry, ↑chemical science
Hypernyms: ↑constant
Hyponyms: ↑dissociation constant

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noun
: a number that expresses the relationship between the amounts of products and reactants present at equilibrium in a reversible chemical reaction occurring at a given temperature, that is relatively independent of the quantities of the species involved, and that represents the ratio of the mathematical product of the concentrations of the reaction products to the mathematical product of the concentrations of the starting materials

Useful english dictionary. 2012.

Look at other dictionaries:

  • equilibrium constant — (= equilibrium dissociation constant; dissociation constant) The ratio of the reverse and forward rate constants for a reaction of the type A + B = AB. At equilibrium the equilibrium constant (K) equals the product of the concentrations of… …   Dictionary of molecular biology

  • Equilibrium constant — For a general chemical reaction:alpha A +eta B ... ightleftharpoons sigma S+ au T ...the equilibrium constant can be defined by [F.J,C. Rossotti and H. Rossotti, The Determination of Stability Constants, McGraw Hill, 1961.] :K=frac{S ^sigma {{T^ …   Wikipedia

  • equilibrium constant — pusiausvyros konstanta statusas T sritis Standartizacija ir metrologija apibrėžtis Reakcijos produktų ir reaguojančių medžiagų pusiausvirųjų koncentracijų sandaugų dalmuo. atitikmenys: angl. equilibrium constant vok. Gleichgewichtskonstante, f… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • equilibrium constant — pusiausvyros konstanta statusas T sritis chemija apibrėžtis Reakcijos produktų ir reaguojančiųjų medžiagų pusiausvirųjų koncentracijų sandaugų santykis. atitikmenys: angl. equilibrium constant rus. константа равновесия …   Chemijos terminų aiškinamasis žodynas

  • equilibrium constant — pusiausvyros konstanta statusas T sritis fizika atitikmenys: angl. equilibrium constant vok. Gleichgewichtskonstante, f rus. постоянная равновесия, f pranc. constante de l’équilibre, f …   Fizikos terminų žodynas

  • equilibrium constant — a constant, K (or Keq), describing the amounts of reactants and products of a chemical reaction at equilibrium at constant temperature; technically defined by thermodynamic activities, it is usually approximated using concentrations (and… …   Medical dictionary

  • equilibrium constant — noun Date: 1929 a number that expresses the relationship between the amounts of products and reactants present at equilibrium in a reversible chemical reaction at a given temperature …   New Collegiate Dictionary

  • equilibrium constant — /ikwəˈlɪbriəm kɒnstənt/ (say eekwuh libreeuhm konstuhnt) noun a ratio which, for a reversible chemical reaction at equilibrium, expresses the concentrations of those chemicals formed in the forward reaction divided by the concentrations of those… …   Australian English dictionary

  • equilibrium constant — Смотри константа равновесия …   Энциклопедический словарь по металлургии

  • thermodynamic equilibrium constant — termodinaminė pusiausvyros konstanta statusas T sritis Standartizacija ir metrologija apibrėžtis Pusiausvyros konstanta, kurioje koncentracijos yra pakeistos aktyvumais. atitikmenys: angl. thermodynamic equilibrium constant rus. термодинамическая …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

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