Hess' Law

Need to determine the enthalpy change in a system that won't fit in a calorimeter? Hess' Law is here to help! Science scholars discover the practical uses of the law and time-saving hacks to master the calculations.

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CCSS: Adaptable
Instructional Ideas

  • Use the resource to present Hess' Law after a study of calorimetry
  • Pause the video along the way to allow the class to take notes and work the sample problem
Classroom Considerations

  • Make sure learners are familiar with endothermic and exothermic reactions before beginning Hess' Law

  • The video is a great at-home tutor for pupils struggling with enthalpy calculations
  • Presents the material using logical steps that will help learners build solid problem-solving skills

  • None
Common Core