This is a table of contents for my notes on thermal physics (thermodynamics and statistical mechanics). The posts are arranged in an order that might be found in a textbook. For an alphabetical index, see this page.

- Temperature
- Thermal expansion of liquids and solids
- Ideal gas law
- Barometric equation - the exponential atmosphere
- Virial expansion for a gas
- Ideal gas - relation of average speed of molecules to temperature
- Effusion - gas leaking through a small hole
- Equipartition theorem - qualitative treatment
- Heat, work and temperature
- Compression work
- PV diagrams - a monatomic ideal gas follows a triangular cycle
- PV diagrams - a diatomic ideal gas undergoes a rectangular cycle
- Isothermal and adiabatic compression of an ideal gas
- Adiabatic compression in a diesel engine
- Bulk modulus and the speed of sound
- Atmospheric convection
- Heat capacity and specific heat capacity
- Heat capacities at constant volume and pressure
- Measuring heat capacity at constant volume
- Latent heat
- Enthalpy
- Enthalpy in chemical reactions
- Enthalpy - a few examples
- Thermal conductivity - R values
- Heat equation
- Thermal conductivity of an ideal gas
- Viscosity of an ideal gas
- Diffusion in an ideal gas - Fick's law
- Diffusion equation
- Diffusion - a couple of examples
- Random walks and diffusion

- Binomial coefficients and probability
- Einstein solid
- Interacting Einstein solids
- Interacting Einstein solids - a few examples
- Two-state paramagnet as an Einstein solid
- Logarithms - a few properties
- Stirling's approximation for large factorials
- Einstein solids - multiplicity of large systems
- Interacting Einstein solids - sharpness of the multiplicity function
- Interacting Einstein solids - rectangular peak in multiplicity graph
- Paramagnets and coin flips - peak and width of multiplicity function
- Einstein solid - numerical solution
- Einstein solid - analytic solution for heat capacity

- Multiplicity of a 2-dim ideal gas
- Multiplicity of interacting ideal gases
- Entropy
- Entropy of an ideal gas - Sackur-Tetrode equation
- Entropy - a few examples
- Entropy of mixing
- Entropy of distinguishable molecules
- Temperature defined from entropy
- Zeroth law of thermodynamics
- Thermal equilibrium for entropy plots
- Temperature of an Einstein solid
- Predicting heat capacity
- Third law of thermodynamics - residual entropy
- Entropy changes in macroscopic systems
- Two-state paramagnet - numerical solution
- Two-state paramagnet - analytic solution
- Two-state paramagnet - an experiment with DPPH
- Two-state paramagnet - entropy as a function of temperature
- Pressure in terms of entropy - the thermodynamic identity
- Entropy and heat
- Entropy of diamond and graphite
- Heat capacities in terms of entropy

- Chemical potential - application to the Einstein solid
- Chemical potential of an ideal gas
- Chemical potential of a mixture of ideal gases

- Heat engines
- Carnot cycle
- Power plants as heat engines
- Carnot engine - a realistic version
- Internal combustion engine - the Otto cycle
- Diesel engines
- Stirling engine
- Steam engines - the Rankine cycle
- Steam engines in the real world
- Entropy of water and steam