Lecture 4: Partition Function and Thermodynamic Identity
Boltzmann Factor, Partition Function and how to calculate everything else from it.Live near lakes because they have a high heat capacity. Energy and H...
Thermal and Statistical Physics
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Physics 416 Thermal and Statistical Physics Purdue University Textbook: Thermal Physics by Kittel and Kroemer Lectures follow the text fairly closely, so if you're joining us from iTunes, you might enjoy having a copy handy.
Lecture 5: Free Energy and Maxwell Relations
Helmholtz Free Energy is the right energy to use when temperature and volume are used as control variables. Free Energy and the Partition Function. Ma...
Lecture 6: Ideal Gas Law, Planck Blackbody Radiation
Deriving the ideal gas law. Equipartition Theorem. Entropy of Mixing.Hot things glow -- or how night vision goggles work (Planck blackbody radiation)....
Lecture 2: Multiplicity Function
Why is the most probable configuration important? Multiplicity Function is a gaussian in the two-state system.Weighted averages. Introduction to parti...
Final Review 2
This is a final review for the last 1/4 of the course. This is a very short lecture, because we had a field trip to go see the prestigious Bagwell Lec...
Lecture 24: Fluctuation-Dissipation Theorem
We finish two more examples of the Fluctuation-Dissipation Theorem. This is a theorem that pops up everywhere! It means that the very same microscopic...
Lecture23: Brownian Motion and Diffusion
Brownian motion was discovered by a botanist named Brown, when he looked at water under a microscope, and observed pollen grains "jiggling" about in i...
Lecture 22: Nucleation in First Order (Abrupt) Phase Transitions
Supercooling Demonstration (thanks to special guest Prof. Ken Ritchie): Put filtered water in a plastic bottle in your freezer for, say, 4 hours. Now,...
Lecture 21: Alloys, Mixing, and Phase Separation
Oil and water -- they don't mix. Or do they? Due to the entropy of mixing, any tiny amount of impurity is highly favored entropically. This means that...