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11 Cards in this Set
- Front
- Back
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Thermal energy |
is the energy associated with the random motion of atoms and molecules |
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chemical energy |
is the energy stored within the bonds of chemical substances |
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nuclear energy |
is the energy stored within the collection of neutrons and protons in the atom |
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What is heat |
Heat is the transfer of thermal energy between two bodies that are a different temperature |
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What is temperature |
Temperature is the measure of the thermal energy |
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Thermodynamics? |
is the scientific study of the interconversion of heat and other kinds of energy |
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Work done by the system on the surroundings |
- Negative |
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Work done ON the system by the surrounding |
+ positive |
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Heat absorbed by the system from the surroundings (endothermic) |
+ positive |
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Heat absorbed by the surroundings from the system (exothermic) |
- negative |
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Enthalpy (delta H) |
is used to quantify the heat flow into or out of a system in a process that occurs at constant pressure |
