law of mass action


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Noun1.law of mass action - (chemistry) the law that states the following principle: the rate of a chemical reaction is directly proportional to the molecular concentrations of the reacting substances
law of nature, law - a generalization that describes recurring facts or events in nature; "the laws of thermodynamics"
chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
References in periodicals archive ?
The Law of Mass Action is a model foregrounded on the fact that ion exchange is a reversible process which, according to the equation, is ruled by a chemical equilibrium that defines the selectivity of the ion exchanger.
From [1], Chapter 8.5, page 202: The (A) law of mass action, the (B) Pauli principle, the (C) superconductivity and the (D) uncertainty principle were found at higher aggregation levels of the particle world and applied to (A) molecules, (B) atoms, (C) metal crystals and (D) elementary particles.
Therefore, according to the law of mass action, serum concentrations of free hormones (F[T.sub.3] and F[T.sub.4]) do not change upon dilution of the serum., Thus, a concentration change in response to dilution may indicate the presence of an interfering substance, as reported by Westerhuis and Venekamp (3), who found that F[T.sub.4] concentrations decreased when serum containing anti-[T.sub.2] gelatin and anti-[T.sub.3] gelatin autoantibodies was diluted 5-fold, whereas in other sera, F[T.sub.4] concentrations showed no change even at 40fold dilutions.