Unit 9 · Thermodynamics and Electrochemistry

Chapter 9.1

Entropy: How Matter and Energy Spread Out

Ice melts in a warm room without anyone pushing it, and a gas fills a vacuum on its own. Both are the universe drifting toward the arrangements that can happen the most ways.

lesson 41 of 45

By the end

  1. 01Predict the sign and relative size of an entropy change for a chemical or physical process
  2. 02Explain entropy as matter and energy spreading out, including its rise with temperature
  3. 03Compute a standard entropy change from absolute molar entropies

In unit 9

  1. 9.1Entropy: How Matter and Energy Spread Out
  2. 9.2Gibbs Free Energy, Thermodynamic Favorability, and Kinetic Control
  3. 9.3Free Energy, Equilibrium, Dissolution, and Coupled Reactions
  4. 9.4Galvanic and Electrolytic Cells: Voltage from Free Energy
  5. 9.5Cells Away from Standard Conditions, and Electrolysis
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