Question

What causes the brownian movement?

Answer 1

Brownian movement hasbeen explainedto be due to the unbalanced bombardment of the particlesby the molecules of the dispersion medium (waterin most cases).This is deducted since Brownianmotion has a stirring effect which does notpermit the particles to settle, therefore stabilizing the sol!

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Answer 2

It is caused by the movement of the water molecules, they are constantly hitting the colloid particles and jostling them about.

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