ADVANCED CHEMICAL KINETICS

Paper Code: 
CHY 425 C
Credits: 
4
Contact Hours: 
60.00
Max. Marks: 
100.00
Objective: 

Course Objective(s) :

This course will enable the students to –

acquire knowledge about kinetics of some special reactions and different techniques of fast reaction, understand the different type of PES and molecular reaction dynamics.

Course Outcomes (COs):

Course Outcomes

Teaching Learning Strategies

Assessment Strategies

After the completion of this course, students will be able to-

CO159:interpret methods for the kinetic studies of fast reactions.

CO160:establish rate law for catalytic reactions using steady state approximation.

CO161:explain the mechanism of surface reactions and establish rate law for unimolecular and bimolecular surface reaction.

CO162:interpret a reaction coordinate diagram (potential energy surface) and determine reaction pathway.

CO163:explain kinetics of surface reactions and photochemical reactions.
  • Interactive lectures
  • Tutorials
  • Group discussions
  • Use of models
  • Digital learning
  • Problem solving sessions
  • Assertion and Reasoning

 
  • Oral and written examinations
  • Assignments
  • Quiz

 

 
 


 

 

12.00
Unit I: 
Kinetics of Some Special Reactions

Kinetics and mechanism of atom and radical combination reactions, kinetics of solid-state reactions, polymerization reaction, electron transfer reactions.
Fast reactions: Introduction, study of different techniques for fast reactions, flow techniques, relaxation techniques (including derivations), flash photolysis, shock tubes.

 

12.00
Unit II: 
Kinetics of Catalyzed Reactions

General catalytic mechanism: Equilibrium treatment, steady state treatment, activation energies for catalyzed reactions.
Acid-base catalysis: Mechanism, catalytic activity and acid base strength, acidity functions.
Enzyme catalysis: Michaelis-Menten mechanism, influence of substrate concentration, influence of pH, influence of temperature, transient phase kinetics.
Micellar catalysis, phase transfer catalysis, kinetics of inhibition.

 

12.00
Unit III: 
Reactions on Surfaces

Competitive adsorption, non-ideal adsorption, thermodynamics and statistical mechanics of adsorption, structures of solid surfaces and adsorbed layers, mechanism of surface reactions, unimolecular surface reactions, bimolecular surface reactions, transition state theory of surface reactions.

12.00
Unit IV: 
Molecular Reaction Dynamics

Molecular dynamical calculations: Reaction of H + H2, reaction of Br + H2. Chemiluminescence. Potential energy surfaces: Selective enhancement of a reaction, disposal of excess energy, gradual and sudden surfaces, influence of rotational energy. Molecular beams: principle of crossed molecular beams, molecular encounter and principle parameters e.g. impact parameter, collision cross-section, reaction cross section and relation between reaction cross section and reaction rate (single velocity). 

12.00
Unit V: 
Photophysical Chemistry

Photochemical reactions: photochemical primary process, law of photochemical equivalence, fate of the excited molecules. Photophysical kinetics of unimolecular processes, delayed fluorescence, effect of temperature, bimolecular collisions in gases and solutions, mechanism and kinetics of quenching: Stern-Volmer equation, concentration dependence of quenching and excimer formation.

Essential Readings: 
  • Chemical Kinetics, Third Edition; K.J. Laidler; Pearson Education Private Limited, Singapore, 2013.
  • Chemical Kinetics and Reaction Dynamics, First Edition; S. K. Upadhyay; Springer Netherlands, 2010.

 

References: 

SUGGESTED READINGS:

  • Kinetics and Mechanisms of Chemical Transformations; First Edition; J. Rajaram and J.C. Kuriacose; Macmillan Publisher India Ltd., New Delhi, 2011.
  • Fundamentals of Photochemistry; Third Edition, K.K. Rohatgi-Mukherjee; New Age International (P) Limited, Publishers, Delhi, 2017.

e-Resources:

 

Academic Year: 
2023-2024
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