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9.7 Coupled Reactions

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Coupled Reactions

Sometimes, chemists want a reaction that is thermodynamically unfavorable to happen. In order to do this, they must provide an external source of energy. For example, electrical energy is used to charge a battery and light is able to convert carbon dioxide to glucose in photosynthesis. All of these processes won’t happen on their own, so they need another reaction to occur, which is thermodynamically favorable, to provide them the external energy needed to react, which is known as a coupled reaction.

In this unit

11 lessons

  1. 9.1Introduction to EntropyPreview lesson
  2. 9.2Absolute Entropy and Entropy ChangePreview lesson
  3. 9.3Gibbs Free Energy and Thermodynamic FavorabilityPreview lesson
  4. 9.4Thermodynamic and Kinetic ControlPreview lesson
  5. 9.5Free Energy and EquilibriumPreview lesson
  6. 9.6Free Energy of DissolutionPreview lesson
  7. 9.7Coupled ReactionsThis lesson
  8. 9.8Galvanic (Voltaic) and Electrolytic CellsPreview lesson
  9. 9.9Cell Potential and Free EnergyPreview lesson
  10. 9.10Cell Potential Under Nonstandard ConditionsPreview lesson
  11. 9.11Electrolysis and Faraday’s LawPreview lesson

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