The Tyndall effect is named after the scientist John Tyndall, who discovered it. This effect is significant as it provides a method for detecting the presence of colloidal particles in a solution by observing the scattering of light.
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When light passes through a colloidal solution, it undergoes scattering due to interaction with the colloidal particles. This phenomenon is known as the Tyndall effect.
Colloidal particles are small enough to be below the threshold of visibility, requiring a microscope to observe them individually.
Milk is an example of a colloidal solution, where fat droplets are dispersed uniformly throughout the liquid medium.
Despite appearing homogeneous, colloidal solutions are heterogeneous because they contain particles of larger sizes that do not dissolve and remain dispersed in the medium.
Colloidal solutions have uniformly dispersed particles throughout the solution, appearing homogeneous despite being heterogeneous.
The stability of a suspension can be influenced by factors such as particle size, viscosity of the medium, and the presence of stabilizing agents or additives. Agitation or settling may also affect suspension stability.
Examples of suspensions include muddy water, paint, and certain medicines where solid particles are suspended in a liquid medium.
Suspensions are typically formed by dispersing solid particles into a liquid medium. These particles do not dissolve but rather remain dispersed throughout the liquid.
Suspensions differ from solutions and colloids in that their particles are visible to the naked eye due to their larger size.