A RELATION BETWEEN THE THERMAL-CONDUCTIVITY AND THE SPECIFIC-HEAT FROM ENTROPY CONSIDERATIONS

Authors
MIRANDA EN VIDALES AM
Citation
En. Miranda et Am. Vidales, A RELATION BETWEEN THE THERMAL-CONDUCTIVITY AND THE SPECIFIC-HEAT FROM ENTROPY CONSIDERATIONS, Journal of physics. D, Applied physics, 31(10), 1998, pp. 1176-1179
Citations number
6
Categorie Soggetti
Physics, Applied
Journal title
Journal of physics. D, Applied physics → ACNP
ISSN journal
00223727
Volume
31
Issue
10
Year of publication
1998
Pages
1176 - 1179
Database
ISI
SICI code
0022-3727(1998)31:10<1176:ARBTTA>2.0.ZU;2-8
Abstract
The thermodynamic inequality d(2)S/dt(2) less than or equal to 0 has b een considered and the heat conduction described by Fourier's law has been studied. An inequality between thermal conductivity and specific heat exponents has been found from the thermodynamical relationship. T he inequality holds for temperature intervals for which phenomenologic al power laws can be fitted to the conductivity and the specific heat. We have checked our analytical result with data for some materials an d the inequality is always satisfied.