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1 coefficiente di fugacità
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Fugacity — is a measure of a chemical potential in the form of adjusted pressure. It reflects the tendency of a substance to prefer one phase (liquid, solid, or gas) over another, and can be literally defined as “the tendency to flee or escape”. At a fixed… … 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
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
Raoult's law — Established by François Marie Raoult, Raoult s law states: the vapor pressure of an ideal solution is dependent on the vapor pressure of each chemical component and the mole fraction of the component present in the solution . [ A to Z of… … Wikipedia
Vapor-liquid equilibrium — Vapor liquid equilibrium, abbreviated as VLE by some, is a condition where a liquid and its vapor (gas phase) are in equilibrium with each other, a condition or state where the rate of evaporation (liquid changing to vapor) equals the rate of… … Wikipedia
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
Non-random two-liquid model — VLE of the mixture of Chloroform and Methanol plus NRTL fit and extrapolation to different pressures The non random two liquid model[ … Wikipedia
Phi (letter) — Phi (uppercase Φ, lowercase φ or Unicode|ϕ), pronounced [IPA|fī] in modern Greek and as [IPA|faɪ] in English, is the 21st letter of the Greek alphabet. In modern Greek, it represents [IPA|f] , a voiceless labiodental fricative. In Ancient Greek… … Wikipedia
liquid — liquidly, adv. liquidness, n. /lik wid/, adj. 1. composed of molecules that move freely among themselves but do not tend to separate like those of gases; neither gaseous nor solid. 2. of, pertaining to, or consisting of liquids: a liquid diet. 3 … Universalium
Ideal solution — In chemistry, an ideal solution or ideal mixture is a solution in which the enthalpy of solution is zero; [ A to Z of Thermodynamics Pierre Perrot ISBN 0198565569] the closer to zero the enthalpy of solution, the more ideal the behavior of the… … Wikipedia