Question

explain why particles of a colloidal solution do not settle down when left undisturbed.​

Answer 1

Answer:

hi mate✔️✔️

In a colloidal solution,the colloidal particles are small and they are being continously hit upon by the molecules of dispersion medium.It is very unlikely that the dispersed phase particles will be hit upon by an equal force all the sides.Therefore,there is a resultant force acting upon the colloidal particles in a particular direction.Therefore, colloidal particle execute zig-zag motion,called Brownian movement.Because of this ,the colloidal particles do not settle down under the influence of gravity.

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Answer 2

Answer:

due to Brownian motion the collid particles are Very small and not heavy