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http://nopr.niscpr.res.in/handle/123456789/25283| Title: | Extensivity of entropy |
| Authors: | Das, S K Sengupta, S |
| Keywords: | Entropy;Thermodynamics;Extensivity of entropy;Gibbs paradox |
| Issue Date: | Dec-2003 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | In the conventional framework of thermodynamics it is an established fact that, in absence of surface effects, infinitesimal change in entropy is extensive. But this does not automatically guarantee the extensivity of entropy. Our purpose in this paper is to discuss this problem, strictly within the framework of thermodynamics, using a principle of linear superposition in conjunction with a simple postulate, which contain s a feature consistent with quantum mechanical concept of indistinguishability of atoms and molecules. Some important consequences of the extensivity of entropy are also discussed. Extensivity of entropy is essential to calculate the change in entropy in an adiabatic irreversible process where the number of atoms of a system is not fixed as well as to make thermodynamics free from the well-known Gibbs paradox. |
| Page(s): | 941-945 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Appears in Collections: | IJPAP Vol.41(12) [December 2003] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJPAP 41(12) 941-945.pdf | 864.87 kB | Adobe PDF | View/Open |
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