Question

Which of the following statement is true about Brownian movement?

• A. It depends on size of particle.
• B. It depends on viscosity of the solution.
• C. It depends on temperature.
• D. All of the above.

Answer 1

The correct option is D All of the above.

Brownian movement:
Under ultramicroscope, colloidal particles appear t​o be in a continuous ​zig-zag motion​ known as Brownian movement.
1. It is independent of the nature of colloids.
2. It depends on size of particle.
$\text{Mobility}\propto \frac{1}{\text{Size of particle}}$

3. It depends on viscosity of the solution.
$\text{Mobility}\propto \frac{1}{\text{Viscosity}}$

4. It depends on temperature.
$\text{Mobility}\propto \text{Temperature}$