Ch 8 Matter and Temperture
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Created by:
marnyhyde on September 21, 2011
Subjects:
Classes:
Chemistry 1013, Introductory Chem, Teacher: Lynda, Peebles
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20 terms
Terms | Definitions |
|---|---|
 states of matter | solid, liguid, gas and plasma |
| kinetic theory of matter | tiny particles in constant motion make up all matter |
| crystal | particles arranged in repeating geometric patterns |
| plasma | a gaslike mixture |
| thermal expansion | almost all matter expands when it gets hot and contracts when it cools |
| polluted water | water that contains high levels of unwanted materials |
| thermal pollution | excess heat in water |
| evaporation | liquid changes to gas |
| condensation | gas changes to liquid |
| heat of fusion | amount of heat needed to change material from a solid to a liquid |
| heat of vaporization | amount of heat needed to change material from a liquid to a gas |
| pressure | amount of force excerted per unit area (P=F/A) |
| pascal | Pa is the SI unit of pressure |
| Boyle's Law | If you decrease volume of gas, the pressure will increase provided there is no temperature change |
| Charles's Law | The volume of gas increases with increasing temperature provided that the pressure does not change |
| bouyant force | ability of water to exert an upward force on an object |
| Archimedes' principle | the bouyant force on an object equals the weight of fluid being displaced by the object |
| Pascal's principle | pressure applied to a fluid is transmitted evenly throughout |
| Bernoulli's principle | as velocity of a fluid increases, the pressure decreases |
| Venturi Effect | fluids will flow faster through narrow spaces |
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