Term
the study of energy changes that occur during chemical reactions and changes in state |
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Definition
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energy stored in chemical bonds |
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Definition
chemical potential energy |
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Term
energy that rransfers from one object to another because of a temperature difference between two objects |
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from what and to where does heat flow? |
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Definition
from a hotter object to a coller object |
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Term
a part of the universe on which you focus your attention |
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everything in the universe outside of the system |
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in any chemical or physical process, energy is neither created nor destroyed |
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Definition
law of conservation of energy |
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Term
a process that absorbs heat from the surroundings |
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what happens during an endothermic process? |
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Definition
the system gains heat and the surroundings cool down |
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Term
a process that releases heat to its surroundings |
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what happens during an exothermic process? |
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Definition
the system loses heat and the surrounds heat up |
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what is heat flow measured in? |
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the amount of heat needed to increase the temperature of an object exactly 1 degree celsius |
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Definition
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what does the heat capacity of an object depend on? |
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Definition
the objects mass and chemical composition |
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Term
the amount of heat needed to increase the temperature of 1 g of substance one degree celsius |
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Definition
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what is the specific heat of water? |
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Definition
4.18 J/(g times degreesC) or 1.00 cal/ (g times degrees C) |
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