I/GCSE Chemistry Question Analysis Topic: Chemistry - Colloids
Exam Question:
Define Brownian movement. What is the cause of Brownian movement in colloidal particles? How is it responsible for the stability of colloidal sol?
Answer:
For I/GCSE Chemistry, you should know:
Brownian movement: Brownian movement is the random movement of particles in a fluid caused by their constant collision with other moving particles.
The impact of the molecules of the dispersion medium on the molecules of the dispersed phase is what causes Brownian movement.
Sol stability: Brownian motion creates a stirring effect that prevents colloidal sol from settling. Colloidal sols remain in a state of motion as a result.
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