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| In order to do work, you must apply a force, there must be a displacement, and force and displacement must be in the same direction. |
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| energy due to an object's position, condition, composition, or electrical charge. |
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| Kinetic energy at an atomic/molecular level |
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| Energy transferred from one system to another naturally |
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| A measure of the average kinetic energy of a system of molecules |
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| The amount of energy needed to apply a force of one Newton over one meter. |
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| The amount of energy required to change one gram of a substance by 1 degree Celsius. |
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| amount of energy required to change 1 gram of a substance at melting point from a solid to a liquid |
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| Amount of energy required to change 1 gram of a substance at boiling point from a liquid to a gas |
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| Heat content of a chemical substance - symbol H |
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| Hr - The thermal energy required for a reaction to run |
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| Gives off heat from system to surroundings |
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| Absorbs heat from surroundings |
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| Intermediate stage of reaction |
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| Speeds up the reaction by causing an intermediate reaction with a lower energy of activation; reforms at end of reaction. |
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