Instructional Video

Hess' Law: Enthalpies of Formation

Curated and Reviewed by Lesson Planet

Tired of long, tedious enthalpy calculations? Look no further than Hess' Law! Young chemists discover a shortcut using changes in enthalpy with a video from JFR Science. The narrator talks about the theory behind the law, then performs sample calculations.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Add the resource to an existing enthalpy lesson plan for a quick overview of Hess' Law
  • Incorporate diagrams of enthalpy changes into the lesson so viewers get the big picture
Classroom Considerations
  • Your class should understand enthalpy before viewing
  • This video is hosted on YouTube
Pros
  • Narrator discusses and illustrates the advantages of using Hess' Law over the much more lengthy way of calculating enthalpy changes
  • Content creates strong ties to prior knowledge
Cons
  • None
Common Core