What Is The Difference Between Diffusion And Osmosis?

Both the processes involve passive movement of a substance from an area of its high concentration to an area of low concentration. The major difference revolves around the type of substance being transported. Diffusion involves the transport of solute molecules in a solution whereas osmosis is the movement of water molecules from an area where they are in a higher concentration to the area where they are in a low concentration (from high water potential to low water potential).
The other difference is that diffusion occurs without a membrane whereas osmosis occurs across a semi-permeable membrane. Also, the flow of molecules occurs in one direction only whereas in diffusion, molecules may diffuse in any direction.
Also, diffusion may also occur in gases besides liquids but osmosis only occurs in aqueous solutions. Osmosis is also relatively slower than diffusion. Diffusion may disperse molecules over a very long distance but osmosis generally occurs over a short distance.
However, both processes occur in living and non-living things and both types of movements are regulated by the concentration of the molecules involved.

Osmosis is d movement of water molecules 4rm solution where water is in higher concentration to a region where water is in lower concentration through a semi permeable membrane, until equilibrium is established while diffusion is d movement of gaseous or liquid molecules 4rm a region of higher concentration to a region of lower concentration through d medium of air or liquid till d molecules of d diffusing substance are evenly or uniformly distributed

The spontaneous movement of particles from the area of higher concentration to the area of lower concentration is known as diffusion. For example if you spray a perfume in one corner of the room and after some time you will feel it smell at the other corner of the room, it is because of diffusion.

Diffusion can also be defined as the movement of charge particles from high potential to the lower potential. Whereas, when water molecules move from higher concentration to the lower concentration through a semi-permeable membrane, it is known as osmosis.

1. Diffusion Can occur in liquids, gas and even sometimes in solids whereas osmosis can only occur in solvent molecules.
2. diffusion can occur any where but osmosis requires a semipermeable membrane.

Diffusion is  the process in which there is movement of a
substance from an area of high concentration of that substance to an
area of lower concentration, and osmosis is diffusion of molecules through a
semipermeable membrane from a place of higher concentration to a place
of lower concentration until the concentration on both sides is equal.

To diffuse is to take out for something to undergo osmosis it is to be absorbed and changed.

Molecular diffusion describes the process of molecules traveling from areas of higher concentration to areas of lower concentration.
Osmosis describes the process of water molecules traveling from an area of high concentration to an area of lower concentration, across a semi permeable membrane.

Because diffusion is the process of molecules travelling from areas of higher concentration to lower concentration. And osmosis is the process of molecules travelling from lower concentration to higher concentration.

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