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U11 Thermo Terms
U11 Vocabulary Terms
| Term | Definition |
|---|---|
| calorie | the amount of heat necessary to raise the temperature of 1 gram of water 1 degree Celsius |
| endothermic | type of reaction that absorbs thermal energy from the environment; delta H is positive, heat absorbed, temperature falls |
| exothermic | type of reaction that releases thermal energy into the environment in the form of thermal or light energy; delta H is negative, heat lost, temperature rises |
| enthalpy | the energy content of a chemical system; heat gained or heat lost |
| thermochemistry | the study of heat released or absorbed in a chemical reaction or physical change |
| first law of thermodynamics | the change of internal energy of the open system, between its initial and final states of internal equilibrium; states that energy cannot be created or destroyed, but it can be transferred |
| law of conservation of energy | in a closed system, energy is neither gained nor lost during a physical or chemical change; energy is neither created nor destroyed, but it can change form |
| specific heat | the amount of heat energy needed to increase the temperature of 1 gram of a substance by 1 degree Celsius |
| kinetic energy | moving particles, energy which a body possesses by virtue of being in motion |
| potential energy | the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors |
Created by:
HHATTORI
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