- equilibrium activity
- равновесная активность* * *равновесная активность
Англо-русский словарь нефтегазовой промышленности. 2011.
equilibrium activity
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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
Activity coefficient — An activity coefficient [ [http://www.iupac.org/goldbook/A00116.pdf Gold Book definition] ] is a factor used in thermodynamics to account for deviations from ideal behaviour in a mixture of chemical substances. In an ideal mixture the… … Wikipedia
Activity (chemistry) — In chemical thermodynamics, activity (symbol a) is a measure of the “effective concentration” of a species in a mixture, meaning that the species chemical potential depends on the activity of a real solution in the same way that it would depend… … Wikipedia
activity — 1. In electroencephalography, the presence of neurogenic electrical energy. 2. In physical chemistry, an ideal concentration for which the law of mass action will apply perfectly; the ratio of the a. to the true concentr … Medical dictionary
equilibrium catalyst — In FCC, mixtures of fresh and used catalysts of various ages as found when small amounts of fresh catalyst are added daily, or more often, to maintain some activity level. Equilibrium catalysts can be purchased on the open market. See: FCC … Petroleum refining glossary
equilibrium radionuclide angiocardiography — radionuclide angiocardiography in which images are taken at specific phases of the cardiac cycle over a series of several hundred cycles. Timing of image recording is set, or gated, by the occurrence of specific electrocardiographic waveforms,… … Medical dictionary
Determination of equilibrium constants — Equilibrium constants are determined in order to quantify chemical equilibria. When an equilibrium constant is expressed as a concentration quotient, it is implied that the activity quotient is constant. In order for this assumption to be valid… … Wikipedia
Chemical equilibrium — In a chemical reaction, chemical equilibrium is the state in which the concentrations of the reactants and products have not yet changed with time. It occurs only in reversible reactions, and not in irreversible reactions. Usually, this state… … Wikipedia
Solubility equilibrium — is any type chemical equilibrium between solid and dissolved states of a compound at saturation. Solubility equilibria involve application of chemical principles and constants to predict solubility of substances under specific conditions (because … Wikipedia
Water activity — or aw is a measurement of the energy status of the water in a system. It is defined as the vapor pressure of water above a sample divided by that of pure water at the same temperature; therefore, pure distilled water has a water activity of… … Wikipedia
равновесная радиоактивность — — [А.С.Гольдберг. Англо русский энергетический словарь. 2006 г.] Тематики энергетика в целом EN equilibrium radioactivityequilibrium activity … Справочник технического переводчика
