Surface Phenomena is very vital course as part of BS/MSc study scheme because of its wide application in research and in chemical reactions based on catalysis. Catalysts speed up the reactions and increases yields mostly within same time frame. The course designed comprises of extensive knowledge about surface chemistry, surfactants etc. the contents are  surface tension, adsorption isotherms, Freundlick, Langmuir and BET isotherms. Adsorption at liquid surface, surfactants, micellization. Methods of peparation of gels and emulsions. Clasification structure of gels. Thixotropy. Precipitation in gels. Liesegang rings. Emulsifiers. Properties of emulsions. Breaking of emulsions. Orien tation theory. Emulsification and wetting. Significance. Sols and their preparation, properties of suspens optical properties of sols. Determination of particle size. Kinetic properties of sols. Sedimentations of suspensions, electrical properties of sols, electrophorresis and electroosmosis. Stability of suspensoids. Precipitation of sols. Molecular wt determination of macromoleculars. The cause of semi-permealibility. Mechanism of osmotic pressure. Determination of the molecular weight by osmometry.

Physical Chemistry Lab. III (Cr.01)

1. Determination of heat of solution of a substance by solubility method.
2. Determination of empirical formula of Ferric-salicylic acid complex colorimetrically.
3. Determination of order of reaction and the rate constant of a given reaction.
4. Verification of Freundlick isotherm for organic acids.
5. To prepare As2S3 sol.
6. Determination of activity coefficients by measuring electromotive force.
7. Determination of Molar extinction coefficient.

Recommended Books

1. Kaufman, E.D., “Advanced Concepts in Physical Chemistry”. McGraw Hill Book Company. NY (1966).
2. Atkins, P.W. “Elementary Physical Chemistry” 2nd Edition, Freeman NY (1998).
3. Scott, S.K. “Beginning Mathematics for Physical Chemistry” Oxford University Press, UK (1996).
4. Tebutt, P., “Basic Mathematics for Chemists” 2nd Edition. John Wiley & Sons, NY (1998).
5. Gurdeep, R. “Advanced Physical Chemistry” 3rd Ed. Krishna Prakashan Media (P) Ltd. Delhi (2008).