29 terms

Solids, Liquids, and Gases

STUDY
PLAY
solid
definite shape and volume
types of solids
crystalline and amorphous
crystalline solids
particles form a regular, repeating pattern and melt at a specific temperature
amorphous solids
particles are not arranged in a regular pattern and do not melt at a distinct temperature
liquid
definite volume, but no definite shape
particles in a liquid
packed close, but move freely around one another
surface tension and viscosity
properties of liquids
high
a liquid that flows slowly is said to have this type of viscosity
low
a liquid that flows quickly is said to have this type of viscosity
gases
no definite shape or volume
melting
a solid gains thermal energy and changes to a liquid
freezing
when a liquid loses thermal energy and changes to a solid
vaporization
takes place when the particles in a liquid gain enough energy to form a gas
evaporation
vaporization that occurs only on the surface of the liquid
boiling
when vaporization takes place inside as well as outside of a liquid
air pressure
the boiling point of a substance depends on the ________________________ above
condensation
occurs when particles in a gas lose enough thermal energy to form a liquid
sublimation
occurs when the surface particles of a solid gain enough energy that they form a gas
dry ice or frozen carbon dioxide
examples of sublimation
volume, temperature, pressure
three ways gases are measured
boyle's law
when the pressure of a gas at constant temperature is increased, the volume of the gas decreases
raises
increasing temperature does this to pressure
charles's law
when the temperature of a gas in increased at constant pressure, its volume increases
raises
increasing temperature does this to volume
directly proportional
according to charles's law, volume is ________________________________ to temperature
inversely
according to boyle's law, pressure varies ________________________ with its volume
responding variable
vertical axis of a graph
manipulated variable
horizontal axis of a graph
pressure
the force of its outward push divided by the area of the walls of the container