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The Principles of Thermodynamics
book

The Principles of Thermodynamics

by N.D. Hari Dass
October 2013
Intermediate to advanced content levelIntermediate to advanced
352 pages
13h 56m
English
CRC Press
Content preview from The Principles of Thermodynamics
The Second and Third Laws 81
nal energy reaches a maximum. Then from eqn.(3.37) it follows that temperature can
be both positive and negative in these systems. In the vortex gas case, as elegantly
shown by Onsager, the negative temperature sector is not only physical but mani-
fests itself observationally in very novel ways [51]. But what is common to all these
systems with both positive and negative temperatures is that the two sectors do not
communicate to each other, and no smooth transformations connect them. Therefore
in effect, one is dealing with systems where the temperature is always of one sign.
In classical thermodynamics temperatures are ...
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Publisher Resources

ISBN: 9781466512085