__Thermal Physics Unit T5 Statistical Thermodynamics __

** Prerequisites:** T1 and T2

__Overview__:

Thermodynamics is the study of what you can say about a system without a detailed knowledge of its fundamental constituents (molecules, for example) and the interactions among them. Given, say, an expression for the internal energy U in terms of the entropy S and the volume V, one can derive all the macroscopic properties of the system in equilibrium, but no attempt is made to explain the energy function in terms of the mechanics of its constituents.

In statistical mechanics one *does * try to gain such an
understanding. We also get a more fundamental understanding of entropy. With
this detailed picture of the system it is also possible to answer question
about a system which is not in equilibrium.

__Read: ____ __

F. W. Sears and G. L. Salinger, *Thermodynamics, Kinetic Theory,
and Statistical Thermodynamics
* (S&S) Chapt. 11 - Statistical Thermmodynamics.

__Comment__:

__After completing this unit you should understand:__

- Energy states and energy levels.
- Macro-states and microstates.
- Thermodynamic probability.
- The different kinds of particle statistics: Maxwell-Boltzmann, Bose-Einstein, and Fermi-Dirac..
- Distribution functions.
- The statistical meaning of entropy.

__Problems:__

Sears & Salinger, Chapt. 11: Problems 1,2,5,14,28,29,35,36 .

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