Isochoric Process and Internal Energy Internal Energy Units Specific Internal Energy Potential Energy Contribution Heat Transfer Work Done in Thermodynamic Processes Joule’s Law Extensive Property Internal Energy Dependence on Temperature Sign Convention Definition of Internal Energy Microscopic Interpretation of Internal Energy Monatomic Gas Equipartition of Energy Adiabatic Process and Internal Energy Degrees of Freedom Kinetic Energy Contribution State Function Internal Energy of an Ideal Gas Calorimetry and Internal Energy Diatomic Gas Microscopic Interpretation Isothermal Process and Internal Energy First Law of Thermodynamics Temperature Dependence