activity

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  • noun

Synonyms for activity

Synonyms for activity

energetic physical action

Synonyms for activity

any specific behavior

(chemistry) the capacity of a substance to take part in a chemical reaction

a process existing in or produced by nature (rather than by the intent of human beings)

References in periodicals archive ?
This feature allows obtaining the activity coefficients of the component one, based on experimental data of the other component (for binary mixtures).
Knowing the thermodynamic definitions for fugacity and activity coefficients, the following objective functions [F.
Tables 4 and 5 show the calculated values of the mass-based infinite dilution solvent activity coefficients, ([[OMEGA].
In this article, the sorption parameters, as well as the mass-based solvent activity coefficients and Rory Huggins parameters of polyvinylacetate-solvent and polyethylene-solvent mixtures, have been determined from IGC measurements, to properly characterize the thermodynamic properties of these systems, and to analyze the influence of temperature and the nature of the solvent (association, polar or dispersion) over the Flory Huggins parameters.
Accurate measurement of activity coefficients at infinite dilution by inert gas stripping and gas chromatography.
Henry's constants and infinite dilution activity coefficients of propane, propene, butane, isobutane, 1-butene, isobutene, trans-2-butene, and 1,3-butadiene in 1-butanol and 2-butanol from (250 to 330) K.
in the liquid phase are very low compared to the other species present in the equilibrated liquid phase, they have been neglected in the material balances and activity coefficient calculations.
Similar expressions for logarithm of activity coefficient can be derived for other molecular and ionic solutes.
Neither the electromotive force nor the activity coefficient was smoothed with respect to temperature.
The extrapolation method of Harned and Ehlers, which expressed the activity coefficient in eq (1) by the Debye-Huckel limiting law, was used to obtain all of the potentials except those given in the last column.
In the study, the adsorption enthalpy, molar evaporation enthalpy, sorption enthalpy, sorption free energy, sorption entropy, Flory-Huggins interaction parameters, partial molar free energy of mixing, weight fraction activity coefficients, solubility parameter of polymer, and the partial molar heats of mixing at infinite dilution were also determined.
The polymer NRTL activity coefficients model interaction parameters.
The weight fraction activity coefficient, 1, and Flory-Huggins interaction parameter are important for defining solvent-polymer interactions.
Activity coefficients for solvent blends may be obtained from vapor pressure observations or from computational schemes such as NRTL [12], UNIFAC [13], and others.