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Ch3 april

states of matter and phase changes

TERMDEFINITION
states of matter the phisical forms of matter,wich includes solid,liquid,and gas
solid the state of matter in wich the volume and shape of a substance are fixed
liquid the state of matter that has a definite volume but not a definite shape
surfance tension the force that acts on the surface of a liquid and tends to minimize the area of the surface
viscosity the resistance of a gas or liqid to flow
gas a form of matter that does not have a definaint volume or shape
tempature a measure of how hot (or cold) something is; specifically,a measure of the movement of particales.
volume a measure of the size of a body or region in three-dimensional space
pressure the amount of force exerted per unit area of a surface
boyles law the law that states that the volume of a gas is inverely proportional to the pressure of a gas when tempature is constant
charels law the law that states that the volume of a gas is directly proportional to the temperture of a gas when pressure is constant
change of state the change of a substance from one physical state to another
melting the change of state in wich a solid becomes a liquid by adding energy
evaporation the change of a substance from a liquid to a gas
boiling the conversation of a liquid to a vapor when the vapor pressure of the liquid equals the atmospheric pressure
condensation the change of state from gas to a liquid
sublimation the process in wich a solid changes directly into gas
Created by: bvblover
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