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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. |