Knudsen diffusion

Knudsen diffusion is when the diffusivity is determined by the size of the containing vessel instead of the solvents or solutes. It is generally applicable in a combination of small vessel sizes or very low pressures. What happens is that the free path of a molecule is not limited by the nearby molecules (the solvent) but by the walls of its container.

Additional recommended knowledge

How to quickly check pipettes?

Weighing the right way

Don't let static charges disrupt your weighing accuracy

See also

• Knudsen number
• Diffusion

External link: Transport in Small Pores [1]