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dc.contributor.author | Sorensen, Torben S. | es_ES |
dc.contributor.author | Compañ Moreno, Vicente | es_ES |
dc.contributor.author | Rivera, Sergio R. | es_ES |
dc.date.accessioned | 2018-09-17T07:04:41Z | |
dc.date.available | 2018-09-17T07:04:41Z | |
dc.date.issued | 1998 | es_ES |
dc.identifier.issn | 0013-4686 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/107345 | |
dc.description.abstract | [EN] A formalism is developed for the treatment of general, vectorial transport phenomena of the energetic quantities of Brønsted in nonelectrolyte or electrolyte systems with or without temperature gradients, gravitational or electric fields, and with or without a membrane matrix present. The treatment is based in the properties of so-called generalized friction forces between the streaming components and between these and the streaming entropy. The role of the proper form of the Gibbs¿Duhem equation in such systems is discussed in prolongation of the treatment of Sørensen and Compañ[Electrochim. Acta42, 639¿649 (1997)]. It is shown that the local dissipation may be expressed in the usual bilinear form of fluxes and forces, but this form is derived from the fact that the dissipation is the work performed against the generalized friction forces. The relation between the Galilei invariance and the noninvertibility of the phenomenological equations as well as the overall balance of the friction forces is stressed. The formalism is used to derive expressions for the electromotoric force in isothermal electrochemical cells with a membrane separator and gravitational forces included, for thermoosmotic effects and thermodiffusion of salts in membranes and for thermoelectromotive forces over membranes. Suitable ¿quantities of transport¿ are defined in nonisothermal systems. Using the ¿quasi-thermostatic method¿ of Helmholtz, Thomson and Brønsted and using the present formalism lead to the same results. Single ion activities cannot be found experimentally neither from isothermal nor from nonisothermal measurements of electromotive force. | es_ES |
dc.description.sponsorship | This work has been supported by the Dirección General de Investigación en Ciencia y Tecnología, DGICYT (Ministry of Education and Science of Spain) under project PB92-0773-C03-03 and by BANCAJA under project P1B95-004. T.S.S. is indebted to DGICYT for a sabbatical year guest professorate enabling him to do research at the Universitat Jaume I, Castellon, Spain. Furthermore, T.S.S. as well as V.C. are grateful to the University of Concepción and to the Intercampus Exchange Programme (Spain-Latin America) for economic support for a 1 month stay in Chile. | es_ES |
dc.language | Inglés | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation.ispartof | Electrochimica Acta | es_ES |
dc.rights | Reserva de todos los derechos | es_ES |
dc.subject.classification | MAQUINAS Y MOTORES TERMICOS | es_ES |
dc.subject.classification | FISICA APLICADA | es_ES |
dc.title | Generalized friction forces in electrochemical and gravitational non-equilibrium systems with or without temperature gradients | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.1016/S0013-4686(97)00214-4 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/MEC//PB92-0773-C03-03/ES/DIFUSIÓN Y PERMSELECTIVIDAD DE GASES EMN NUEVOS POLIMEROS/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/UJI//P1B95-004/ | |
dc.rights.accessRights | Cerrado | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Departamento de Termodinámica Aplicada - Departament de Termodinàmica Aplicada | es_ES |
dc.description.bibliographicCitation | Sorensen, TS.; Compañ Moreno, V.; Rivera, SR. (1998). Generalized friction forces in electrochemical and gravitational non-equilibrium systems with or without temperature gradients. Electrochimica Acta. 43(8):951-956. https://doi.org/10.1016/S0013-4686(97)00214-4 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | https://doi.org/10.1016/S0013-4686(97)00214-4 | es_ES |
dc.description.upvformatpinicio | 951 | es_ES |
dc.description.upvformatpfin | 956 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 43 | es_ES |
dc.description.issue | 8 | es_ES |
dc.relation.pasarela | S\31987 | es_ES |
dc.contributor.funder | Ministerio de Educación y Ciencia | es_ES |
dc.contributor.funder | Fundación Bancaja | |
dc.contributor.funder | Universitat Jaume I | es_ES |