This note deals with the Gibbs paradox for the following case. An ideal gas A is allowed to mix with an ideal gas A* whose atoms are all A atoms in an excited metastable state. It is shown that after a time long compared to the lifetime of the metastable state there has been an entropy increase larger than the mixing entropy which “disappears.”
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© 1958 American Association of Physics Teachers.
1958
American Association of Physics Teachers
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