Chapter 10 Vocabulary
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12 terms
Terms | Definitions |
|---|---|
 kinetic molecular theory | a theory that explains that the behavior of physical systems depends on the combined actions of the molecules constituting the system |
| ideal gas | a hypothetical gas that perfectly fits all the assumptions of the kinetic-molecular theory |
| elastic collision | a collision between ideally elastic bodies in which the final and initial kinetic energies are the same |
| diffusion | the movement of particles from regions of higher density to regions of higher density to regions of lower density |
| effusion | a process by which gas particles pass through a tiny opening |
| real gas | a gas that does not behave completely according to the assumptions of the kinetic molecular theory |
| fluid | a substance that can flow and therefore take the shape of its container |
| surface tension | a force that tends to pull adjacent parts of a liquids surface together, thereby decreasing surface area to the smallest possible size |
| capillary action | the attraction of the surface of a liquid to the surface of a solid |
| vaporization | the process by which a liquid or solid changes to a gas |
| evaporation | the process by which particles escape from the surface of a nonboiling liquid and enter the gas state |
| freezing | the physical change of a liquid to a solid by removal of energy as heat |
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