Difference Between Diffusion and Osmosis


Diffusion is the movement of particles from the area of ​​highest concentration to the lowest concentration.

It is a passive process.

  • Any kind of substance goes from the higher energy or concentration zone to the lower energy zone.
  • Diffusion can occur in any medium (solid, liquid or gaseous).
  • A semi-permeable membrane is not necessary for its diffusion.
  • Diffusion is not based on pressure potential, solute potential.
  • Diffusion mostly depends on the presence of different particles.


Osmosis is the movement of solvent particles over a semi-penetrable membrane into a concentrated solution from a dilute solution.

  • Osmosis is also a passive process.
  • Only water or any other solvent circulates from the zone of high concentration to the zone of low concentration.
  • Osmosis only occurs in the liquid medium.
  • A semi-permeable membrane is necessary for osmosis.
  • Osmosis depends on the potential of the solute.
  • Osmosis is highly dependent on the number of solute particles that dissolve in the solvent.

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Jose Hullgren (Laboratory Analist)

Hello to all readers, my name is Jose Hullgren, it is a pleasure to present you this website of my authorship, I am currently working as a laboratory analyst and for the last 10 years I have been working in the pharmaceutical industry. The main idea of this page is to provide relevant information in the field of the pharmaceutical industry above all. We also cover different areas of chemistry and sciences in general that we find interesting. Perfil Linkedin

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