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16 Cards in this Set
- Front
- Back
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Temperature |
The measure of the average kinetic energy of molecules of the particles of a substance. |
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Celsius (centigrade) |
Uses the freezing point (0) and the boiling point of water (100) as a reference points to create a temperature measuring scale with 100 degrees between them. |
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Fahrenheit |
Uses the freezing point (32) and the boiling point of water (212) as reference points to create a temperature measuring scale with 180 degrees between them. |
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Kelvin |
Absolute zero forms the basis of the temperature scale known as the absolute scale or Kelvin scale. |
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Law of Conservation of Energy |
States that the total energy in a given system remains constant. |
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Thermal Equilibrium |
Occurs when objects transferring heat and their surroundings reach the same temperature. |
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Calorimetry |
Is based on the Law of Conservation of Energy and assumes that all of the heat lost by the object of high temperature is transferred to the others of lower temperature. |
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Conduction |
The process whereby a transfer of heat takes place between objects that are in direct physical contact with each other. |
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Convection |
The process whereby a transfer of heat takes place due to the movement of a fluid medium (liquid or gas) from one region to another. |
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Radiation |
The process whereby a transfer of heat takes place due to the emission of electromagnetic radiation from an object. Does not need a medium to transfer the heat energy. |
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Latent Heat |
During the actual phase change, the heat added or removed is not detectable since the heat is used in causing the change of state. |
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Heat of vaporization |
The energy per unit mass transferred in order to change a substance from a liquid to a vapor or vice versa. |
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Heat of fusion |
The energy per unit mass transferred in order to change a substance from a solid to a liquid or vice versa. |
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Sensible Heat |
Between the changes of state the heat added or removed is measureable using a thermometer or a thermocouple. |
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Relationship of thermal energy and work |
Heat can be used to do work. During work, energy is transferred to another form as well as some being transferred to heat (internal energy) |
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Heat energy transfer |
Heat is the transfer of energy from an object of higher temperature to one of lower temperature. |
