Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 62633
Title On the pressure in mean-field lattice models
Author(s) Oversteegen, S.M.; Barneveld, P.A.; Leermakers, F.A.M.; Lyklema, J.
Source Langmuir 15 (1999)25. - ISSN 0743-7463 - p. 8609 - 8617.
DOI https://doi.org/10.1021/la990512v
Department(s) Physical Chemistry and Colloid Science
Publication type Refereed Article in a scientific journal
Publication year 1999
Abstract We show that it is possible to define a pressure within a mean-field lattice model by means of statistical thermodynamics that shows the same physics of the pressure as that found from the virial route. A unique expression for the bulk pressure, which satisfies the Kamerlingh-Onnes virial expansion, is found. However, for inhomogeneous systems two different expressions for the grand potential density, both identified as the local tangential pressure, are elaborated. Such ambiguity of the local pressure has also been encountered for continuum models for the pressure. The profile of the normal and tangential components of the pressure through the system show features that are similar to other models in the literature.
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