## Thermodynamics

- Thermodynamics (part 1)
- Thermodynamics (part 2)
- Thermodynamics (part 3)
- Thermodynamics (part 4)
- Thermodynamics (part 5)
- Macrostates and microstates
- Quasistatic and reversible processes
- First law of thermodynamics / internal energy
- More on internal energy
- Work from expansion
- Pv-diagrams and expansion work
- Proof: U = (3/2)PV or U = (3/2)nRT
- Work done by isothermic process
- Carnot cycle and Carnot engine
- Proof: Volume ratios in a carnot cycle
- Proof: S (or entropy) is a valid state variable
- Thermodynamic entropy definition clarification
- Reconciling thermodynamic and state definitions of entropy
- Entropy intuition
- Maxwell's demon
- More on entropy
- Efficiency of a Carnot engine
- Carnot efficiency 2: Reversing the cycle
- Carnot efficiency 3: Proving that it is the most efficient
- Enthalpy
- Heat of formation
- Hess's law and reaction enthalpy change
- Gibbs free energy and spontaneity
- Gibbs free energy example
- More rigorous Gibbs free energy / spontaneity relationship
- A look at a seductive but wrong Gibbs/spontaneity proof
- Stoichiometry example problem 1
- Stoichiometry example problem 2
- Limiting reactant example problem 1
- Empirical and molecular formulas from stoichiometry
- Example of finding reactant empirical formula
- Stoichiometry of a reaction in solution
- Another stoichiometry example in a solution
- Molecular and empirical formulas from percent composition
- Hess's law example