Khan Academy

Pressure-volume work (K-A)

PV-diagrams and expansion work (K-A)

Quasistatic and reversible processes (K-A)

Specific heat and latent heat of fusion and vaporization (K-A)

Work from expansion (K-A)

2015 AP Chemistry free response 7 (K-A)

Bond enthalpy and enthalpy of reaction-link (K-A)

Bond enthalpy and enthalpy of reaction-video (K-A)

Calorimetry and enthalpy introduction (K-A)

Enthalpy-video (K-A)

Heat of formation (K-A)

Hess's law and reaction enthalpy change (K-A)

Hess's law example (K-A)

Carnot cycle and Carnot engine (K-A)

Entropy intuition (K-A)

Entropy: Embrace the chaos (K-A)

Introduction to entropy (K-A)

Maxwell's demon (K-A)

More on entropy (K-A)

Proof: S (or entropy) is a valid state variable (K-A)

Proof: Volume ratios in a Carnot cycle (K-A)

Reconciling thermodynamic and state definitions of entropy (K-A)

Second Law of Thermodynamics (K-A)

Thermodynamic entropy definition clarification (K-A)

2015 AP Chemistry free response 2c (K-A)