Exothermic vs. Endothermic Reactions

Exothermic vs. Endothermic Reactions

12th Grade · Science · 45 min

Lesson Preview

Learning Objective

I can differentiate between exothermic and endothermic reactions based on energy transfer.

  • 1

    In an exothermic reaction, heat is released from the reaction, while in an endothermic reaction, heat is absorbed.

  • 2

    In an exothermic reaction, the reactants have more energy than the products, resulting in a downhill energy diagram.

  • 3

    Activation energy is the energy required to initiate a reaction by pressuring the bonds of the reactants.