1. 3.3 : Ideal gases and absolute zero
3.2.9 Define pressure.
State the assumptions of the kinetic model of an ideal gas.

2. Ideal gasses
Have the equation of state PV = nRT (this equation also defines the universal gas constant)
cannot be liquefied.
obey Newton’s laws of motion.
have no inter-molecular forces.
are made up of particles with negligible volume (i.e. points)
have particles in random motion
Have particle collisions which are elastic
Particle collisions take zero time

3. Pressure Pressure = Force/ Area P = F/A The units are:
Pressure = pascals (Pa)
Force = newtons (N)
Area = meters squared (m2)

4. An ideal gas

5. To do