Heat capacity of water : a signature of nuclear quantum effects

Vega, C. y Conde, M. M. . (2010) Heat capacity of water : a signature of nuclear quantum effects. The Journal of Chemical Physics (v. 132), 2010, pp. 046101/1-2 ISSN: 0021-9606, EISSN: 1089-7690. doi: 10.1063/1.3298879

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Título Heat capacity of water : a signature of nuclear quantum effects
Autor(es) Vega, C.
Conde, M. M.
Materia(s) Física
Química
Resumen In this note we present results for the heat capacity at constant pressure for the TIP4PQ/2005 model, as obtained from path-integral simulations. The model does a rather good job of describing both the heat capacity of iceIh and of liquid water. Classical simulations using the TIP4P/2005, TIP3P, TIP4P, TIP4P-Ew, simple point charge/extended, and TIP5P models are unable to reproduce the heat capacity of water. Given that classical simulations do not satisfy the third law of thermodynamics, one would expect such a failure at low temperatures. However, it seems that for water, nuclear quantum effects influence the heat capacities all the way up to room temperature. The failure of classical simulations to reproduce Cp points to the necessity of incorporating nuclear quantum effects to describe this property accurately.
Editor(es) American Institute of Physics (AIP)
Fecha 2010-01-03
Formato application/pdf
Identificador bibliuned:DptoCTFQ-FCIE-MODELICO-1025
http://e-spacio.uned.es/fez/view/bibliuned:DptoCTFQ-FCIE-MODELICO-1025
DOI - identifier 10.1063/1.3298879
ISSN - identifier 0021-9606, EISSN: 1089-7690
Publicado en la Revista The Journal of Chemical Physics (v. 132), 2010, pp. 046101/1-2 ISSN: 0021-9606, EISSN: 1089-7690. doi: 10.1063/1.3298879
Idioma eng
Versión de la publicación submittedVersion
Relacionado con el proyecto: info:eu-repo/grantAgreement/S2009/ESP-1691
Tipo de recurso Article
Derechos de acceso y licencia http://creativecommons.org/licenses/by-nc-nd/4.0
info:eu-repo/semantics/openAccess
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Creado: Thu, 04 Sep 2014, 14:19:27 CET