High schoolThermochemistry and kinetics11 minLesson 21 of 33

Reaction enthalpy

Defining ΔH, Hess's law, calorimetry. First contact with the first law of thermodynamics.

What this lesson covers

  1. Enthalpy and reaction heat at constant pressure
  2. Standard enthalpies of formation ΔfH°
  3. Hess's law
  4. Calorimetry
  5. First law — global energy balance

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