The Brownian movement of colloidal particles is because of:
Correct answer: B. Unequal bombardments by the molecules of the dispersion medium on colloidal particles.
- A. Convection currents in the fluid
- B. Unequal bombardments by the molecules of the dispersion medium on colloidal particles.
- C. Setting of dispersed phase under gravity.
- D. Thermal gradient in the medium.
Explanation
Unequal bombardments of solvent particles on colloidal particles cause zigzag motion.
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Solutions are described using molarity, molality, normality, mole fraction, percentage concentration and parts per million. Coverage also includes vapour-pressure lowering, boiling-point elevation, freezing-point depression and osmotic pressure, then distinguishes true solutions, colloids and suspensions by particle size, stability, light scattering and settling.
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