All AP Courses

Unit 9

AP Chemistry Unit 9: Thermodynamics and Electrochemistry

7–9% of the multiple-choice section · 11 topics

Entropy, Gibbs free energy and thermodynamic favorability, kinetic control, free energy and equilibrium, coupled reactions, galvanic and electrolytic cells, cell potential, and electrolysis.

Topics

  1. 9.1Introduction to Entropy
  2. 9.2Absolute Entropy and Entropy Change
  3. 9.3Gibbs Free Energy and Thermodynamic Favorability
  4. 9.4Thermodynamic and Kinetic Control
  5. 9.5Free Energy and Equilibrium
  6. 9.6Free Energy of Dissolution
  7. 9.7Coupled Reactions
  8. 9.8Galvanic (Voltaic) and Electrolytic Cells
  9. 9.9Cell Potential and Free Energy
  10. 9.10Cell Potential Under Nonstandard Conditions
  11. 9.11Electrolysis and Faraday’s Law

Unit check

11 questions drawn from every lesson in Unit 9. Each wrong answer links back to where the idea is taught.

Take the Unit 9 check