Difference between Diffusion and Osmosis - QS Study
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Difference between Diffusion and Osmosis:

Diffusion

Diffusion is a spontaneous movement of particles from an area of high concentration to an area of low concentration.

  • The molecules of the substance are not to pass through the differentially permeable membrane.
  • In this process, the molecules of the substance diffuse from the area where they are in high concentration to the area where they are in the low concentration.
  • Diffusion may also occur in between two solutions of different natures.
  • Diffusion causes diffusion pressure.
  • Diffusion may occur in between gas and gas; liquid and gas; solid and liquid; solid and gas.

Osmosis

Osmosis is the spontaneous net movement of water across a semipermeable membrane from a region of low solute concentration to a more concentrated solution, up a concentration gradient.

  • The molecules of the solvent are to pass through the differentially permeable membrane.
  • In this method, the water molecules diffuse from lower concentrated solution to the higher concentrated solution.
  • Osmosis can only occur in between two solutions of same characteristics.
  • Osmosis causes osmotic pressure.
  • Oman can only occur in between liquid and liquid.