CLASS: B.Sc. (H) Chemistry. NUMBER OF LECTURES IN A WEEK: Three. LESSON PLAN (July-November 2016)

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1 NAME: Dr. GURMEET KAUR CLASS: B.Sc. (H) Chemistry SEMESTER: V COURSE: Physical Chemistry PAPER CODE: CHHT-513 NUMBER OF LECTURES IN A WEEK: Three LESSON PLAN (July-November 2016) WEEK JULY Introduction of chemical kinetics, reaction rate, rate constant, law of mass action. JULY Differential and integrated rate laws for zero order, 1 st order and half life period. Methods to find order of reactions. Differential and integrated rate laws for 2 nd order reactions with equal and unequal concentrations (initial), numerical. Half life period for second order reactions. Opposing and parallel reactions, consecutive reactions and steady state approximations. Derivations of rate laws for different types of consecutive reactions with examples and their mechanisms.

2 WEEK Chain reactions, stationary and non stationary chain reactions. Derivations of rate laws for various chain reactions with given mechanisms. Problems. Temperature dependence of reaction rate, derivation of Arrhenius equation, activation energy and temperature co-efficient and numerical. Collision theory of bimolecular gaseous reactions, Lindeman mechanism Theory of absolute reaction rates. Comparison between collision theory and absolute theory and Arrhenius equation. Catalysis, types of catalyst, mechanism of catalyzed reaction, numerical, class test. Acid- base catalysis, effect of size and efficiencies of nanoparticles as catalyst. Michaelis-Menton mechanism for enzyme catalysis, calculation of r max and km

3 WEEK Surface chemistry Introduction. Physical and chemical adsorption. Assignment Adsorption Isotherms, Langmuir and others adsorption isotherms for monolayer adsorption. Effect of temperature and pressure on adsorption, nature of adsorbed state. Derivation of BET equation for multilayer adsorption. Relation between surface tension and concentration on the basis of adsorption. Discussion of question papers, problems of students.

4 NAME: DR. ADITI GUPTA NUMBER OF LECTURES IN A WEEK: Two TEACHING SCHEDULE (July-November 2016) WEEK JULY Introduction Conductors and insulators Difference between metallic and electrolytic conduction Factors on which conductance depends Electrolysis, types of electrolytes Conductivity, equivalent and molar conductivity Experimental determination of conductivity Variation of specific conductance and conductivity with dilution for weak and strong electrolytes Arrhenius theory of electrolytic dissociation Ostwald s law of dilution Degree of dissociation Factors affecting degree of dissociation Evidences in support of Arrhenius theory Drawbacks of Arrhenius theory Numerical Problems Debye-Hückel theory

5 WEEK Debye-Hückel-Onsager equation Wien effect, Debye-Falkenhagen effect Molar conductivity at infinite dilution Kohlrausch s law of independent migration of ions Proof of Kohlrausch s law of independent migration of ions Practice Problems Transference numbers and their experimental determination using Hittorf s method, Experimental determination of Hittorf s method, analysis using inert and attackable electrodes Moving Boundary method for determination of transference number of ions Factors on which transference number of an ion depends Abnormal transference numbers Numerical Problems Ionic velocities, mobilities and their determinations Walden s rules Numerical Problems Applications of conductance measurement: degree of dissociation of weak electrolytes, ionic

6 WEEK product of water Applications of conductance measurement: solubility and solubility product of sparingly soluble salts, conductometric titrations, and hydrolysis constants of salts. Numerical Problems Doubts clearing sessions Introduction to photochemistry Importance of photochemistry Characteristics of electromagnetic radiation Difference between thermal and photochemical reactions Test on conductance Beer s law and its derivation Physical significance of absorption coefficient Statement of Lambert- Beer s law, its derivation and limitations Difference between absorbance and molar absorptivity constant

7 WEEK Numerical problems Primary and secondary effects of light absorption by a system comprising of atoms and molecules Laws of photochemistry, Quantum yield Experimental determination of quantum yield Actinometry Reasons for of high and low quantum yields Numerical problems Photochemical equilibrium Differential rate of photochemical reactions Photosensitised reactions, quenching Role of photochemical reactions in biochemical processes Photostationary states Chemiluminescence Revision Doubts clearing Discussion of University question papers

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