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Chapter 9 Science
Chapter 9 Studystack of Notes
| Term | Definition |
|---|---|
| Heat from ----- to ----- | Hot to cold |
| Kinetic-molecular model | Shows that particles are in constant motion |
| Potential energy (PE) | Energy possessed because of position to other objects |
| Kinetic energy (KE) | Energy possessed because of motion |
| Total internal energy (TE) | Sum of kinetic energy and potential energy |
| Thermal energy | Sum of all kinetic energy in a particle |
| Loss of thermal energy usually means ----- | Falling temperatures |
| Gain of thermal energy usually means ----- | Rising temperatures |
| Average kinetic energy | Temperature |
| Fiducial points | Boiling and freezing point of water |
| Advantage of Kelvin scale | There is no zero or negative values |
| Thermal expansion | When particles gain energy and move away from each other |
| Electrical resistance | Way to measure how well electricity is conducted |
| Viscosity | Measure of the resistance of liquids to flow |
| Heat | Quantity of thermal energy that flows from one place to another |
| Conduction | Occurs when two object of temperatures touch |
| Thermal equilibrium | When two objects are at the same temperature |
| Convection | Thermal energy carried from one location to another by a fluid |
| Radiation | Thermal energy that radiates from the source outward. |
| Radiant energy can transfer thermal energy between two objects that are not in ----- | Contact |
| Vacuum | Large amounts of empty space. The best insulator. |
| Heat capacity (C) | Relationship between the amount of thermal energy absorbed and the temperature change caused by this |
| Specific heat capacity/specific heat | Heat capacity per gram of material |
| Latent heat of fusion | Amount of thermal energy exchanged per gram of material during melting or freezing |
| Latent heat of vaporization | Amount of heat it takes to change the liquid to a gas |
| Freezing | Phase change as a substance changes from a liquid to a solid |
| Melting | Phase change as a substance changes from a solid to a liquid |
| Condensation | Phase change as a substance changes from a gas to a liquid |
| Vaporization | Phase change as a substance changes from a liquid to a gas |
| Sublimation | Phase change as a substance changes from a solid to a gas without passing through the intermediate state of a liquid |
| Deposition | Phase change as a substance changes from a gas to a solid without passing through the intermediate state of a liquid |
| Triple point | Temperature and pressure at which the solid, liquid, and gas phases exist simultaneously |
| Critical point | Temperature above which a substance will always be a gas regardless of the pressure |
| Freezing point | Temperature at which the solid and liquid phases of a substance are in equilibrium at atmospheric pressure |
| Boiling point | Temperature at which the vapor pressure of a liquid is equal to the pressure on the liquid |
Created by:
haduj2
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