Home » IGCSE » Chemistry » IGCSE chemistry contents » Diffusion and Brownian motion


By the end of this unit, you should be able to:

  •  Show an understanding of Brownian motion of particles as evidence for the kinetic particle model of matter
  • Describe and explain diffusion
  • Describe and explain Brownian motion in terms of random molecular bombardment
  • State evidence for Brownian motion
  • Describe and explain the dependence of the rate of diffusion on molecular mass EXTENDED