Question

9. Define :
(a) cohesive force
(b) diffusion
(c) Brownian movement


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Answer 1

Explanation:

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Answer 2

Answer:

a).cohesive attraction or cohesive force is the action or property of like molecules sticking together, being mutually attractive.

b).Diffusion is the net movement of anything from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in concentration.

c).Brownian motion, or pedesis, is the random motion of particles suspended in a medium. This pattern of motion typically consists of random fluctuations in a particle's position inside a fluid sub-domain, followed by a relocation to another sub-domain.

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