Ch. 2 States of Matter Flashcards
(17 cards)
states of matter
the physical forms of matter, which include solid, liquid, gas
solid
the stare of matter in which the volume and shape of a substance are fixed
liquid
the state matter that has a definite volume but a definite shape
surface tension
the force that acts on the surface of a liquid and that tends to minimize the area of the surface
viscosity
the resistance of a gas or liquid to flow
gas
a form of matter that does not have a definite volume or shape
temperature
a measure of how hot (or cold) something is: specifically, a measure of the movement of particles
volume
a measure of the size of a body or region in three dimensional shape
pressure
the amount of force exerted per unit area of a surface
Boyle’s Law
the law that states that the volume of a gas is inversely proportional to the pressure of a gas when temperature is constant
Charles’s Law
the law that states that the volume of a gas is directly proportional to the temperature of a gas when when pressure is constant
change of state
the change of a substance from one physical state to another
melting
the change of state in which a solid becomes a liquid by adding energy
evaporation
the change of a substance from liquid to gas
boiling
the conversion 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 liquid
sublimation
the process in which a solid changes directly into a gas
