Ch.2 Section 1,2,3 Flashcards
(17 cards)
states of matter
the physical forms of matter, which include, solid, liquid, and gas
solid
the state of matter in which the volume and shape of a substance are fixed
liquid
the state of matter that has a definite volume but not a definite shape
surface tension
the force that acts of the surface of a liquid and that tends to minimize the area of the surface
viscoity
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, a measure of the movement of the particles
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 substance
Boyle’s Law
the law that states that 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 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 a gas
boiling
the conversion of a liquid to a vapor when the vapor pressure of a liquid equals the atmospheric pressure
condensation
the change of a state from gas to a liquid
sublimation
the process in which a solid changes directly into a gas
