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13 Cards in this Set
- Front
- Back
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define system
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the part of the universe of interest to us
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define surroundings
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part of the universe surrounding the system
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define open system
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A system, which can exchange mass and energy with its surroundings.
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define closed system
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a system that allows the transfer of energy but not mass
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define isolated system
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a system that doesn't allow that transfer of mass or energy
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define chemical energy
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energy stored within structural units of chemical substances
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define potential energy
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energy available by virtue of an object's position
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define thermal energy
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energy associated with random motion of atoms and molecules
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define kinetic energy
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energy produced by a moving object
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define the law of conservation of energy
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The total quantity of energy in the universe is assumed constant.
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define thermochemistry
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the study of heat changes in chemical reactions
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define exothermic process
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thermal energy transferred to surroundings
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define endothermic process
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reaction in which heat has to be applied to the system.
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