Khan Academy on a Stick
Thermodynamics

Thermodynamics (part 1)
Intuition of how gases generate pressure in a container and why pressure x volume is proportional to the combined kinetic energy of the molecules in the volume.

Thermodynamics (part 2)
Example problem that pv=pv. Introduction to temperature.

Thermodynamics (part 3)
Introduction to Kelvin. Example of a problem involving the ideal gas law

Thermodynamics (part 4)
Introduction to the concept of a mole. Universal gas constant R. PV=nRT

Thermodynamics (part 5)
Example problem involving PV=nRT

Macrostates and microstates
The difference between macrostates and microstates. Thermodynamic equilibrium.

Quasistatic and reversible processes
Using theoretically quasistatic and/or reversible processes to stay pretty much at equilibrium.

First law of thermodynamics / internal energy
First law of thermodynamic and Internal Energy

More on internal energy
Getting more intuition of internal energy, heat, and work

Work from expansion
How a system can do work by expanding

Pvdiagrams and expansion work
Why work from expansion is the area under the curve of a PVdiagram

Proof: U = (3/2)PV or U = (3/2)nRT
Conceptual proof that the internal energy of an ideal gas system is 3/2 PV.

Work done by isothermic process
Isothermic and Adiabatic processes. Calculating the work done by an isothermic process. Seeing that it is the same as the heat added.

Carnot cycle and Carnot engine
Introduction to the Carnot cycle and Carnot heat engine

Proof: Volume ratios in a carnot cycle
Proof of the volume ratios in a Carnot Cycle

Proof: S (or entropy) is a valid state variable
Proof that S (or entropy) is a valid state variable.

Thermodynamic entropy definition clarification
Clarifying that the thermodynamic definition of Entropy requires a reversible system.

Reconciling thermodynamic and state definitions of entropy
Long video explaining why entropy is a measure of the number of states a system can take on (mathy, but mindblowing).

Entropy intuition
A discussion of what entropy is and what it isn't.

Maxwell's demon
Maxwell's Demon: A thought experiment that seems to defy the 2nd Law of Thermodynamics

More on entropy
More clarification as to what entropy is and what entropy is not.

Efficiency of a Carnot engine
Definition of efficiency for a heat engine. Efficiency of a Carnot Engine.

Carnot efficiency 2: Reversing the cycle
Seeing how we can scale and or reverse a Carnot Engine (to make a refrigerator)

Carnot efficiency 3: Proving that it is the most efficient
Proving that a Carnot Engine is the most efficient engine

Enthalpy
Understanding why enthalpy can be viewed as "heat content" in a constant pressure system.

Heat of formation
Standard heat of formation or standard enthalpy change of formation.

Hess's law and reaction enthalpy change
Using Hess's Law and standard heats of formation to determine the enthalpy change for reactions

Gibbs free energy and spontaneity
Intuition behind why spontaneity is driven by enthalpy, entropy and temperature. Introduction to Gibbs free energy.

Gibbs free energy example
Determining if a reaction is spontaneous by calculating the change in Gibbs Free Energy.

More rigorous Gibbs free energy / spontaneity relationship
More formal understanding of why a negative change in Gibbs Free Energy implies a spontaneous, irreversible reaction.

A look at a seductive but wrong Gibbs/spontaneity proof
A look at why the "proof" of the relation between changes in Gibbs Free Energy and Spontaneity is wrong in many textbooks.

Stoichiometry example problem 1
Figuring grams of reactants and product produced from reaction of phosphorous and chlorine.
 Stoichiometry example problem 2

Limiting reactant example problem 1
Limiting Reactant Example Problem 1

Empirical and molecular formulas from stoichiometry
Empirical and Molecular Formulas from Stoichiometry

Example of finding reactant empirical formula
Example of Finding Reactant Empirical Formula

Stoichiometry of a reaction in solution
Stoichiometry of a Reaction in Solution

Another stoichiometry example in a solution
Another Stoichiometry Example in a Solution

Molecular and empirical formulas from percent composition
Molecular and Empirical Forumlas from Percent Composition. Example 2.9 from Kotz Chemistry book

Hess's law example
Hess's Law Example