States of Matter and Thermochemistry · Thermodynamics
Hess's Law and Entropy
Calculating reaction heats through additive steps and introducing the concept of disorder in the universe.
Key Questions
- 1How can we determine the energy of a reaction that is too dangerous or slow to perform in a lab?
- 2Why do some reactions occur spontaneously while others require a constant input of energy?
- 3How does the change in entropy compete with enthalpy to drive a chemical process?
Common Core State Standards
HS-PS1-4
Grade: 11th Grade
Subject: Chemistry
Unit: States of Matter and Thermochemistry
Period: Thermodynamics
Suggested Methodologies
Ready to teach this topic?
Generate a complete, classroom-ready active learning mission in seconds.
More in States of Matter and Thermochemistry
Kinetic Molecular Theory and Gas Laws
Describing the behavior of gases and the mathematical relationships between pressure, volume, and temperature.
2 methodologies
Enthalpy and Calorimetry
Measuring the heat flow in chemical reactions and understanding the difference between endothermic and exothermic processes.
2 methodologies