Temperature
a measure of the average kinetic energy of the molecules.
hydrogen bond
Water’s attractive forces
Barometer
An instrument that measures atmospheric pressure 
Absolute zero
The lowest temperature possible because molecular motion is essentially zero.
Ideal gas
A gas that does not exist where the particles have no volume themselves and where the attractive forces are zero.
melting
phase change from solid to liquid
sublimation
phase change from solid to gas
condensation
phase change from gas to liquid
boiling 
phase change from liquid to gas at the boiling point
partial pressure of a gas in a mixture
the pressure the gas would exert if it were alone in the container.


Which of the following statements is not correct?
a)	Matter is composed of tiny particles called molecules.
b)	These molecules are in constant random motion, even in solids.
c)	All molecules have the same size and mass.
d)	The differences between solid, liquid and gaseous states of matter lie in the relative freedom of motion of their respective molecules.

The pressure of the earth’s atmosphere at sea level is due to 
a)	the gravitational attraction of the earth for the atmosphere.
b)	the heating of the atmosphere by the sun.
c)	The fact that most living things constantly breath  air.
d)	evaporation of water from the sea’s atmosphere.

Absolute zero mat be regarded as that temperature at which
a)	water freezes.
b)	all gases become liquids.
c)	all substances become solids.
d)	molecular motion in a gas would be the minimum possible.

How many moles of gas are in a balloon with a volume of x liters at a temperature of 298 K and a pressure of 1.11 atm?

A piston is squished from 20.0 mL to x mL.  If the starting pressure is 1.01 atm, what is the final pressure? Assume temperature is constant.

A rigid metal container contains a gas at temperature of 298K and a pressure of 2.34 atm.  This gas is heated to a temperature of 398K.  What is the final pressure?