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reaction equilibrium constant

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  • 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 — (= 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 — 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 •… …   Useful english dictionary

  • 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 — /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 — 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 fractionation — Equilibrium isotope fractionation is the partial separation of isotopes between two or more substances in chemical equilibrium. Equilibrium fractionation is strongest at low temperatures, and (along with kinetic isotope effects) forms the basis… …   Wikipedia

  • Equilibrium thermodynamics — is the systematic study of transformations of matter and energy in systems as they approach equilibrium. The word equilibrium implies a state of balance. Equilibrium thermodynamics, in origins, derives from analysis of the Carnot cycle. Here,… …   Wikipedia

  • Equilibrium — is the condition of a system in which competing influences are balanced and it may refer to:cienceBiology* Equilibrioception, the sense of balance present in humans and animals * Homeostasis, the ability of an open system, especially living… …   Wikipedia

  • Reaction quotient — In chemistry, reaction quotient is a quantitative measure of the extent of reaction, the relative proportion of products and reactants present in the reaction mixture at some instant of time. For a chemical mixture with certain initial… …   Wikipedia

  • Equilibrium unfolding — In biochemistry, equilibrium unfolding is the process of unfolding a protein or RNA molecule by gradually changing its solution conditions, i.e., its environment. Since equilibrium is maintained at all steps, the process is reversible… …   Wikipedia

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