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vocabulary chapter 3

vocab 3

TermDefinition
solid is the state of matter in which materials have a definite shape and volume
liquid is the state of matter in which a material has a definite volume but no definite shape
gas is the state of matter in which a material has neither a definite shape or volume
kinetic energy is the energy an object has due to motion
pressure is the result of a force distributed over an area
absoluet zero a temperature of 0
charles law states that the volume of a gas is directly proportional to its temperature in kelvins if the pressure and the number of particles of the gas are constant
boyles 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 is the reversible physical change that occurs when a substance changes from one state of matter to another
endothermic system absorbs energy from its surroundings
heat of fusion another term for melting
exothermic system releases energy to its surroundings
vaporization endothermic process
heat of vaporization water gains 2261 joules of energy when it vaporizes
evaporation is the process that changes a substance from a liquid to a gas at temperatures below the substances boiling point
vapor pressurre the pressure caused by collisions
condensation is the phase change in which a substance changes from a gas or a vapor to a liquid
sublimation is 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: logan.bates