| Issue |
Europhys. Lett.
Volume 55, Number 5, September 2001
|
|
|---|---|---|
| Page(s) | 623 - 625 | |
| Section | General | |
| DOI | https://doi.org/10.1209/epl/i2001-00461-5 | |
| Published online | 01 December 2003 | |
Nernst's postulate derived directly from the vanishing heat capacity at zero temperature
1
Department of Physics, Xiamen University - Xiamen
361005, PRC
2
Ørsted Laboratory, University of
Copenhagen Universitetsparken 5, DK-2100
Copenhagen Ø, Denmark
Received:
18
December
2000
Accepted:
26
June
2001
We show that Nernst's original postulate follows directly from a vanishing heat capacity at zero temperature without further constraints. Thermodynamic stability of the system along with the independence of the other thermodynamic state variables ensures a sufficiently slow temperature approach to zero that the change of the entropy of the system vanishes at least as rapidly as the heat capacity.
PACS: 05.70.Ce – Thermodynamic functions and equations of state / 65.20.+w – Thermal properties of liquids: heat capacity, thermal expansion, etc
© EDP Sciences, 2001
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