Query on Negative Temperature, Internal Interactions and Decrease of Entropy

Details Query on Negative Temperature, Internal Interactions and Decrease of Entropy Query on Negative Temperature, Internal Interactions and Decrease of Entropy

2007-04-16

arxiv.org/abs/0704.1997v1

Physics

General Physics

9 pages

Scientific paper

After negative temperature is restated, we find that it will derive necessarily decrease of entropy. Negative temperature is based on the Kelvin scale and the condition dU>0 and dS<0. Conversely, there is also negative temperature for dU<0 and dS>0. But, negative temperature is contradiction with usual meaning of temperature and with some basic concepts of physics and mathematics. It is a question in nonequilibrium thermodynamics. We proposed a possibility of decrease of entropy due to fluctuation magnified and internal interactions in some isolated systems. From this we discuss some possible examples and theories.

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