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Topic 2 Vocabulary

solid have a definite shape and definite volume
liquid have no definite shape but they have a definite volume
surface tension the inward force among molecules in a liquid that brings the molecules on the surface closer together
viscosity resistance to flowing
gas neither a definite shape nor volume (particles do not remain in contact with each other)
thermal energy the total kinetic (energy of motion) and potential energy (stored energy) in an object or substance
temperature a measure of the average kinetic energy of the particles in a substance or object
melting point melting that occurs at a specific temperature
freezing point the temperature at which a substance changes from a liquid to a solid
vaporization the change in state from a liquid to a gas
boiling point the temperature at which a liquid boils
evaporation vaporization that takes place only on the surface of a liquid
condensation the change in state from a gas to a liquid (opposite of vaporization)
sublimation the surface particles of a solid gain enough energy that they form a gas, not passing through the liquid state
pressure the force pushing on a surface divided by the area of that surface
Charles's Law a principle that describes the relationship between the temperature and volume of a gas at constant pressure (directly proportional)
Boyle's Law a principle that describes the relationship between the pressure and volume of a gas at constant pressure (inversely related)
Created by: krodriguez24
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