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6.1 Energy
Term | Definition |
---|---|
Law of Conservation of Energy | Energy can neither be created nor destroyed. |
Chemical Thermodynamics | The area of Chemistry that deals with applying thermodynamic principles to energy changes in chemical reactions. |
Potential Energy | The energy associated with the position of an object relative to a force upon it. |
Kinetic Energy | The energy associated with motion. |
System | The sample of matter being studied. |
Surroundings | The remainder of the universe. |
Internal Energy | The sum of all the possible forms of energy of all ions, atoms, and molecules in a system. |
State Function | Its value is determined only by the state of the system. |
First Law of Thermodynamics | This law is a practical application of the Law of the Conservation of Energy. |
Joule | The SI unit of energy and energy transfer, including work and heat. |
Enthalpy | The internal energy plus the product of the pressure and volume. |
Endothermic Reaction | The products are usually colder than the reactants because energy has been absorbed. |
Exothermic Reaction | The products are usually hotter than the reactants because some energy was released as heat. |
Energy | The ability to do work. |