Big Idea 5: The laws of thermodynamics describe the essential role of energy and explain and predict the direction of changes in matter.
Enduring Understanding:
- 5.A: Two systems with different temperatures that are in thermal contact will exchange energy. The quantity of thermal energy transferred from one system to another is called heat.
- 5.B: Energy is neither created nor destroyed, but only transformed from one form to another.
- 5.C: Breaking bonds requires energy, and making bonds releases energy.
- 5.D: Electrostatic forces exist between molecules as well as between atoms or ions, and breaking the resultant intermolecular interactions requires energy.
- 5.E: Chemical or physical processes are driven by a decrease in enthalpy or an increase in entropy, or both
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