Cita:
Revista Española de Física, 2006, vol. 20, n. 4, p. 13-19
ISSN:
0213-862X
Agradecimientos:
La investigación del autor está financiada por los proyectos BFM2003-0180 del Ministerio de Educación y Ciencia y UC3M-FI-05-007 de la Universidad Carlos III de Madrid y la Comunidad Autónoma de Madrid, y forma parte del proyecto
“Modelización y Simulación de Sistemas No Homogéneos en Materia Condensada”, MOSSNOHO (S-0505/ESP/000299), financiado por la Comunidad Autónoma de Madrid.
In spite of the identification between entropy and disorder, there are many phase transitions in which an ordered phase emerges
and at the same time entropy increases. In this article it will be shown that this paradox gets resolved by making a literal interpIn spite of the identification between entropy and disorder, there are many phase transitions in which an ordered phase emerges
and at the same time entropy increases. In this article it will be shown that this paradox gets resolved by making a literal interpretation of the famous Boltzmann's equation S = k log W. Two examples: freezing of a fluid and demixing of a binary mixture, will illustrate this phenomenon. From them the concept of entropic force or interaction, very useful in polymer or colloid science, will emerge.[+][-]
Nota:
7 págs, 7 figs.-- Número monográfico de la Revista dedicado al Centenario de Ludwig Boltzmann (1844-1906).
