On the definition of the excess permittivity of a fluid mixture

It is shown that under the assumption of no intermolecular interaction, the permittivity of a homogeneous linear and isotropic fluid mixture is the sum of the individual permittivities weighted with the mole fractions of the components. For definiteness, a proof is given for gasses under standard te...

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Bibliographic Details
Published inThe Journal of chemical thermodynamics Vol. 40; no. 6; pp. 1038 - 1039
Main Author Iglesias, T.P.
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier Ltd 01.06.2008
Elsevier
Subjects
Chemical thermodynamics
Chemistry
Exact sciences and technology
Excess permittivity
General and physical chemistry
General. Theory
Liquid mixtures
Theoretical models
Liquid mixtures
Theoretical models
Excess permittivity
Fluid
Excess parameter
Models
Permittivity
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Summary:It is shown that under the assumption of no intermolecular interaction, the permittivity of a homogeneous linear and isotropic fluid mixture is the sum of the individual permittivities weighted with the mole fractions of the components. For definiteness, a proof is given for gasses under standard temperature and pressure; it is, however, easy to generalize it to other conditions, as well as to liquids, as long as the assumption of no intermolecular interaction is retained. Also, although the proof is given for a binary mixture, it is a simple exercise to extend it to any multicomponent mixture.
ISSN:0021-9614
1096-3626
DOI:10.1016/j.jct.2008.01.027