Question

Write notes on:tyndall effect,Brownian motion, types of emulsion, hardy-schulz rule

Answer 1

Explanation:

TYNDALL EFFECT: The Tyndall effect is the scattering of light as a light beam passes through a colloid. The individual suspension particles scatter and reflect light, making the beam visible.

BROWNIAN MOTION: Brownian motion is the random motion of particles in a liquid or a gas. The motion is caused by fast-moving atoms or molecules that hit the particles.

TYPES OF EMULSIONS:

1. Oil in water
2. water in oil

HARDY SCHULZE RULE: This observation of Hardy and Schulze are known as Hardy Schulze law. It can be defined as: Greater is the valency of the oppositely charged ion of the electrolyte being added, the faster is the coagulation. The idea behind this is the attractive electrostatic forces between ions of opposite charges.

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Answer 2

Answer:

Tyndall effect :

Scattering of light by a colloidal partical in collidial solution.

Brownian movement :

Zig - zac movement of collidial partical in collidial solution.

Hardy suhulze rule :

Greater the Valency of coagulation ion greater is the power to cause precipitation.

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