Define the following term Sublimation,Tyndal effect

1.	Define the following term Sublimation,Tyndal effect
Answer» Sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.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. The amount of scattering depends on the frequency of the light and density of the particles. Conversion of a substance directly from solid to vapour or vice versa is called sublimation.Scattering of light due to the presence of small particles suspended in a heterogeneous mixture or colloidal solution is called Tyndall effect.

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