Important Question on Solubilization for BPharmacy 4th Semester Define Wetting. What are its applications? How surfactants are capable of wetting of powder. Define contact angle. Write its various values ranging from 0° to 180°. Define critical surface tension. Give its application. Define solubilization. Explain process of micelles solubilization with labelled diagram. 1. Define Wetting. What are its applications? Wetting Phenomena In industry, large quantities of powders such as talc or charcoal are added to water. These powders do not get wetted properly in spite of their higher densities than water,…
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Adsorption Isotherms Physical Pharmacy BPharmacy 4th Semester Notes
Important Questions on Adsorption Isotherm: Define Adsorption isotherm. Describe in detail IUPAC classification of adsorbtion isotherm. When a substance moves away from a solution and adsorbs at the surface of a solid, the concentration of the solute remaining in solution is in dynamic equilibrium with the adsorbed concentration at the surface. This distribution ratio of the solute in solution and at the surface is a measure of the adsorption equilibrium. Adsorption studies using gases generally involve the determination of the amount of gas adsorbed, x, by a given mass, m,…
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