An exact formalism to study the thermodynamic properties of hard-sphere systems under spherical confinement
This paper presents a modified grand canonical ensemble which provides a new simple and efficient scheme to study few-body fluid-like inhomogeneous systems under confinement. The new formalism is implemented to investigate the exact thermodynamic properties of a hard sphere (HS) fluid-like system wi...
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2012
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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219606_v136_n22_p_Urrutia http://hdl.handle.net/20.500.12110/paper_00219606_v136_n22_p_Urrutia |
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paper:paper_00219606_v136_n22_p_Urrutia2023-06-08T14:44:21Z An exact formalism to study the thermodynamic properties of hard-sphere systems under spherical confinement First order Grand canonical ensemble Hard spheres Hard-sphere system Inhomogeneous system Partition functions Spherical cavities Spherical objects Adsorption Surface tension Thermodynamic properties Spheres This paper presents a modified grand canonical ensemble which provides a new simple and efficient scheme to study few-body fluid-like inhomogeneous systems under confinement. The new formalism is implemented to investigate the exact thermodynamic properties of a hard sphere (HS) fluid-like system with up to three particles confined in a spherical cavity. In addition, the partition function of this system was used to analyze the surface thermodynamic properties of the many-HS system and to derive the exact curvature dependence of both the surface tension and adsorption in powers of the density. The expressions for the surface tension and the adsorption were also obtained for the many-HS system outside of a fixed hard spherical object. We used these results to derive the dependence of the fluid-substrate Tolman length up to first order in density. © 2012 American Institute of Physics. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219606_v136_n22_p_Urrutia http://hdl.handle.net/20.500.12110/paper_00219606_v136_n22_p_Urrutia |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
First order Grand canonical ensemble Hard spheres Hard-sphere system Inhomogeneous system Partition functions Spherical cavities Spherical objects Adsorption Surface tension Thermodynamic properties Spheres |
spellingShingle |
First order Grand canonical ensemble Hard spheres Hard-sphere system Inhomogeneous system Partition functions Spherical cavities Spherical objects Adsorption Surface tension Thermodynamic properties Spheres An exact formalism to study the thermodynamic properties of hard-sphere systems under spherical confinement |
topic_facet |
First order Grand canonical ensemble Hard spheres Hard-sphere system Inhomogeneous system Partition functions Spherical cavities Spherical objects Adsorption Surface tension Thermodynamic properties Spheres |
description |
This paper presents a modified grand canonical ensemble which provides a new simple and efficient scheme to study few-body fluid-like inhomogeneous systems under confinement. The new formalism is implemented to investigate the exact thermodynamic properties of a hard sphere (HS) fluid-like system with up to three particles confined in a spherical cavity. In addition, the partition function of this system was used to analyze the surface thermodynamic properties of the many-HS system and to derive the exact curvature dependence of both the surface tension and adsorption in powers of the density. The expressions for the surface tension and the adsorption were also obtained for the many-HS system outside of a fixed hard spherical object. We used these results to derive the dependence of the fluid-substrate Tolman length up to first order in density. © 2012 American Institute of Physics. |
title |
An exact formalism to study the thermodynamic properties of hard-sphere systems under spherical confinement |
title_short |
An exact formalism to study the thermodynamic properties of hard-sphere systems under spherical confinement |
title_full |
An exact formalism to study the thermodynamic properties of hard-sphere systems under spherical confinement |
title_fullStr |
An exact formalism to study the thermodynamic properties of hard-sphere systems under spherical confinement |
title_full_unstemmed |
An exact formalism to study the thermodynamic properties of hard-sphere systems under spherical confinement |
title_sort |
exact formalism to study the thermodynamic properties of hard-sphere systems under spherical confinement |
publishDate |
2012 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219606_v136_n22_p_Urrutia http://hdl.handle.net/20.500.12110/paper_00219606_v136_n22_p_Urrutia |
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1768545219792338944 |