Term
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Definition
| the study of energy changes that occur during chemical reactions and changes in state |
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Term
| chemical potential energy |
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Definition
| the energy stored in the chemical bonds of a substance |
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Term
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Definition
| energy that transfers from one object to another because of a temp difference between them, represented by q |
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Term
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Definition
| the part of the universe on which you focus your attention |
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Term
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Definition
| include everything else in the universe |
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Term
| law of conservation of energy |
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Definition
| in any chemical or physical process, energy is neither created nor destroyed |
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Term
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Definition
| one that absorbs heat from the surroundings |
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Term
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Definition
| one that releases heat to its surroundings |
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Term
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Definition
| the amount of heat it takes to raise the temperature of 1 g of the substance 1C |
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Term
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Definition
| the precise measurement of the heat flow into or out of a system for chemical and physical processes |
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Term
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Definition
| the insulated device used to measure the absorption of release of heat in chemical or physical processes |
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Term
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Definition
| the heat content of a system at constant pressure is the same as the property called this |
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Term
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Definition
| the enthalpy change for the chemical equation exactly as it is written |
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Term
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Definition
| a chemical equation that includes the enthalpy change |
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Term
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Definition
| the heat of reaction for the complete burning of one mole of a substance |
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Term
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Definition
| the heat absorbed by one mole of a solid substance as it melts to a liquid at a constant temp |
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Term
| molar heat of solidification |
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Definition
| the heat lost when one mole of a liquid solidifies at a constant temp |
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Term
| molar heat of vaporization |
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Definition
| the amount of heat necessary to vaporize one mole of a given liquid |
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Term
| molar heat of condensation |
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Definition
| the amount of heat released when 1 mol of vapor condenses at the normal boiling point |
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Term
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Definition
| the enthalpy change caused by dissolution of one mole of substance |
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Term
| Hess's law of heat summation |
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Definition
| if you add 2 or more thermochemical equations to give a final equation, then you can also add the heats of reaction to give the final heat of reaction |
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Term
| standard heat of formation |
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Definition
| the change on enthalpy that accompanies the formation of one mole of a compound from its elements with all substances in their standard states at 25*C and 101.3 kPa |
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