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1. It is the movement of the water from the region of its higher concentration to the region of its lower concentration across the semipermeable membrane.
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1. It involves the absorption of the water or the solvent molecules by the solid particles.
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2. A semipermeable membrane is necessary for the osmosis to take place.
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2. The semipermeable membrane is not at all required.
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3. The pressure that has developed during the process of osmosis is known as the osmotic pressure.
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3. The pressure that is developed during the process of imbibition is the imbibition pressure which is comparatively a high pressure.
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4. The heat is not produced.
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4. The process of imbibition produces heat production.
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5. Osmosis requires the presence of the solute particles.
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5. Imbibition requires the presence of colloidal particles.
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