Heat capacity of the generalized two-atom and many-atom gas in nonextensive statistics

Details Heat capacity of the generalized two-atom and many-atom gas in nonextensive statistics Heat capacity of the generalized two-atom and many-atom gas in nonextensive statistics

2009-09-20

arxiv.org/abs/0909.3616v1

Physica A 388(2009)4936

Physics

Condensed Matter

Statistical Mechanics

12 pages, 2 figures, 1 table, 32 references

Scientific paper

We have used the generalized two-atom ideal gas model in Tsallis statistics for the statistical description of a real gas. By comparing the heat capacity with the experimental results for the two-atom molecule gases such as N2, O2 and CO, we find that these gases appear extensive at normal temperature, but they may be nonextensive at the lower temperature. Furthermore, we study the heat capacity of the generalized many-atom gas model. We conclude that, for the many-atom gas with a high degree of freedom, a weak nonextensivity of 1-q<0 can lead to the instability.

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