We all know that there is a limit to the lowest temperature which can be achieved i.e. $0K$. But I wanted to know if there is a limit to the highest temperature which can be attained. And if there is a limit, what is that temperature?
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Possible duplicates: http://physics.stackexchange.com/q/1775/2451 and links therein. Concerning lowest temperature, see http://physics.stackexchange.com/q/21851/2451 and links therein. – Qmechanic Jan 03 '14 at 16:39
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Perhaps it is interesting to cite this very recent development concerning negative temperatures. – Nicolau Saker Neto Jan 03 '14 at 16:41
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@Qmechanic I do think so. – user2369284 Jan 03 '14 at 16:48
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1But please note that negative temperatures are really kind of "higher than infinite" rather than lower than zero in the sense in which we know -- it happens only in systems in which the energy is bounded but the entropy can still increase past the upper bound of the energy. – Zo the Relativist Jan 03 '14 at 17:04