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Stability analysis of the classical ideal gas in nonextensive statistics and the negative specific heat

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  • Liyan, Liu
  • Zhipeng, Liu
  • Lina, Guo

Abstract

We present a stability analysis of the classical ideal gas in a new theory of nonextensive statistics and use this theory to understand the phenomena of negative specific heat in the nonextensive gas. The stability analysis is made on the basis of the second variation of Tsallis entropy. It is shown that the system is thermodynamically unstable if the nonextensive parameter is q>5/3, which is exactly equivalent to the condition of appearance of the negative specific heat.

Suggested Citation

  • Liyan, Liu & Zhipeng, Liu & Lina, Guo, 2008. "Stability analysis of the classical ideal gas in nonextensive statistics and the negative specific heat," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 387(23), pages 5768-5771.
    • Handle: RePEc:eee:phsmap:v:387:y:2008:i:23:p:5768-5771
    DOI: 10.1016/j.physa.2008.06.006
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