Kinetic Particle Theory 7/2/13

Investigating Diffusion in Matter

3 main points of experiment:

• spaces between particles
• Particle molecules in constant, random motion 
• Substance with greater mass ( heavier ) moves much slower --> slower diffusion rate.

forces of attraction between particles : 

solid > liquid > gas

energy of particles:

solid < liquid < gas

e.g. : With greater energy, gas is able to overcome the forces of attraction between particles and thus move freely.

KPT limitation:

--> electrical conductivity ( does not explain)

Assumptions:

-> particles have kinetic energy

-> particles are in constant, random motion

-> forces of attraction between particles.