1. Kinetic Theory of Gases

2. How moving particles exert pressure
Particles collide with a surface
Particles experience a Force
By N3 particles exert a force on the surface area
Pressure = Ave Force exerted per unit area
m u
m v F.

3. How Pressure varies with Volume
↓ Volume, particles have less space to move in
Particles hit surface more often
↑ Ave Force on surface Area
↑ Pressure

4. How Pressure varies with Temp
↑ Temp → ↑ Speed of Particles ( ↑EK )
Particles hit surface more often
Particles hit surface with a greater force
↑ Ave Force on surface Area
↑ Pressure

5. How Volume varies with Temperature
↑ Temp → ↑ Speed of Particles ( ↑EK )
Particles hit surface more often
Particles hit surface with a greater force Volume expands due to higher inside pressure
Until pressures inside and outside are equal