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States of Matter

Chapter 3 vocab

TermDefinition
solid state of matter in which materials have a definite shape and definite volume
liquid state of matter in which a material has a definite volume but not a definite shape
Gas the state of matter in which a material has neither a definite shape nor a definite volume
Kinetic energy the energy an object has due to its motion
Pressure the result of a force distributed over an area
absolute volume a temperature of 0 k
Charles's Law states that the volume of a gas is directly proportional to its temperature in kelvins
Boyle's Law states that the volume of a gas is inversely proportional to its pressure if the temperature and the number of particles are constant
phase change the reversible physical change that occurs when a substance changes from one state of matter to another
endothermic a description of a change in which a system absorbs energy from its surroundings
heat of fusion the energy a substance must absorb in order to change from a solid to a liquid
exothermic a description of a change in which a system releases energy to its surroundings
vaporization the phase change in which a substance changes from a liquid into a gas
heat of vaporization the energy a substance must absorb in order to change from a liquid to a gas
evaporation the process that changes a substance from a liquid to a gas at temperatures below the substance's boiling point
vapor pressure the pressure caused by the collisions of particles in a vapor with the walls of a container
condensation the phase change in which a substance changes from a gas or vapor to a liquid
Sublimation the phase change in which a substance changes from a solid to a gas or vapor without changing to a liquid first
deposition when a gas or vapor changes directly into a solid without first changing into a liquid
Created by: tonee.edmonds
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