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PHYS 1500 Chapter 7
Question | Answer |
---|---|
Chemical Potential Energy | Energy stored in Chemical Forces between Atoms. |
Thermal Equilibrium | When no thermal energy flows between objects. |
Heat | Thermal Energy on the move. |
Heat Exchanger | A device that transfers heat without transferring the hot molecules themselves. |
Electrons | Charged particles that make up out portions of atoms. |
Thermal conductivity | Measure of how rapidly heat flows through materials exposed to a difference in temperatures. |
Convection | Movement of fluid from a hotter object to a cold one. |
Radiation | Emission of heat and radioactive material. |
Heat Capacity | Overall temperature rise must be proportional to heat added. |
Specific Heat | Heat capacity of a specific material per unit mass. |
Joule-per-kilogram-kelvin | SI unit for specific heat. |
Phase | Gas, Liquid, or Solid. |
Crystalline | Water molecules are arranged in orderly lattice work when frozen. |
Transition phase | When an object is moving from one phase to the next, such as melting. |
Phase Equilibrium | Area where water and ice and go exist with one another. |
Sublimation | The transition of solid to gas. |
Deposition | The transition of gas to solid. |
Nucleation | Formation of seed bubbles that are required for evaporation. |
Superheated | When water maintains its liquid form even after being heated above boiling temperature. |
Emissivity | The efficiency with which an object emits or absorbs normal radiation. |
Black body spectrum | The distribution of wavelengths emitted by a black object and is determined by it's temperature alone. |
Color Temperature | Temperature of thermal radiation is associated with a particular distribution of visible wavelengths. |
Stefan-Boltzmann Law | Radiated Power= Emissivity*Stefan-Boltzmann Constant*Temperature^3*Surface Area |
The Co-Effcient of Volume Expansion | Fractional change in an objects volume per unit of temperature increase. |