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Simple diffusion is defined as the movement of
A molecules from areas of higher concentration to areas of lower concentration.
B) molecules from areas of lower concentration to areas of higher concentration.
c) water molecules across a membrane.
b) gas molecules across a membrane.
E) gas or water molecules across a membrane.

Respuesta :

Simple diffusion is defined as the movement of: A molecules from areas of higher concentration to areas of lower concentration.

Explanation:

Diffusion

It is the movement of substances from the region of  higher concentration to lower concentration .

This diffusion is shown almost negligible by solids , a little by liquids and  maximum by gases .

The factors on which diffusion depends :

  • Inter-molecular force between particles : It is inversely proportional to diffusion .That  is : more is the force , lesser the diffusion  rate
  • Inter-molecular space between particles : More is the space , more is the diffusion or vice versa .
  • Density of substance :More is the density , less is the diffusion or vice versa .

Applications of diffusion

It helps in the movement of substance in and out from the cell and its components .

It helps in spreading the fragrance when sprayed with some perfume etc .

It helps in dissolving substance in any medium

Etc