Question

define diffusion?&define osmosis ?

Answer 1

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ur answer

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Diffusion is a spontaneous movement of particles from an area of high concentration to an area of low concentration. ... 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
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Answer 2

Diffusion : -

The process of atoms, ions or molecules from higher concentration region to the lower concentration region is called as diffusion.

EG : -

1. We are able to smell the perfume's smell 'cause it's spread in the air.

2. We are able to detect the smell of the hot sizzling food 'cause hot molecules spread faster as compared to the colder one.

Osmosis : -

The process of spreading of atoms, ions or molecules from higher concentration region to the lower concentration region through a semi - permeable membrane is called as osmosis. Osmosis is occurring only in water.

EG : -

1. Spreading of ink throughout the water.

2. Spreading of mud throughout the water.