CY6151 ENGINEERING CHEMISTRY - I NOTES WITH QUESTIONS AND ANSWERS
CY6151 ENGINEERING CHEMISTRY - I
UNIT I POLYMER CHEMISTRY 9
Introduction: Classification of polymers – Natural and synthetic; Thermoplastic and Thermosetting.Functionality – Degree of polymerization. Types and mechanism of polymerization: Addition (FreeRadical, cationic and anionic); condensation and copolymerization. Properties of polymers: Tg,Tacticity, Molecular weight – weight average, number average and polydispersity index. Techniquesof polymerization: Bulk, emulsion, solution and suspension. Preparation, properties and uses of Nylon6,6, and Epoxy resin.
UNIT II CHEMICAL THERMODYNAMICS 9
Terminology of thermodynamics - Second law: Entropy - entropy change for an ideal gas, reversibleand irreversible processes; entropy of phase transitions; Clausius inequality. Free energy and workfunction: Helmholtz and Gibbs free energy functions (problems); Criteria of spontaneity; Gibbs-Helmholtz equation (problems); Clausius-Clapeyron equation; Maxwell relations – Van’t Hoff isothermand isochore(problems).
UNIT III PHOTOCHEMISTRY AND SPECTROSCOPY 9
Photochemistry: Laws of photochemistry - Grotthuss–Draper law, Stark–Einstein law and Lambert-Beer Law. Quantum efficiency – determination- Photo processes - Internal Conversion, Inter-systemcrossing, Fluorescence, Phosphorescence, Chemiluminescence and Photo-sensitization.Spectroscopy: Electromagnetic spectrum - Absorption of radiation – Electronic, Vibrational androtational transitions. UV-visible and IR spectroscopy – principles, instrumentation (Block diagram only).
UNIT IV PHASE RULE AND ALLOYS 9
Phase rule: Introduction, definition of terms with examples, One Component System- water system -Reduced phase rule - Two Component Systems- classification – lead-silver system, zinc-magnesiumsystem. Alloys: Introduction- Definition- Properties of alloys- Significance of alloying, Functions andeffect of alloying elements- Ferrous alloys- Nichrome and Stainless steel – heat treatment of steel;Non-ferrous alloys – brass and bronze.
UNIT V NANOCHEMISTRY 9
Basics - distinction between molecules, nanoparticles and bulk materials; size-dependent properties.nanoparticles: nano cluster, nano rod, nanotube(CNT) and nanowire. Synthesis: precipitation,thermolysis, hydrothermal, solvothermal, electrodeposition, chemical vapour deposition, laserablation; Properties and applications
TOTAL :45 PERIODS
Jain P.C. and Monica Jain, “Engineering Chemistry”, Dhanpat Rai Publishing Company (P) Ltd.,
New Delhi, 2010
2.Kannan P., Ravikrishnan A., “Engineering Chemistry”, Sri Krishna Hi-tech Publishing Company Pvt. Ltd. Chennai, 2009
1. Dara S.S, Umare S.S, “Engineering Chemistry”, S. Chand & Company Ltd., New Delhi 2010
Sivasankar B., “Engineering Chemistry”, Tata McGraw-Hill Publishing Company, Ltd., New
Gowariker V.R. , Viswanathan N.V. and JayadevSreedhar, “Polymer Science”, New Age
International P (Ltd.,), Chennai, 2006.
Ozin G. A. and Arsenault A. C., “Nanochemistry: A Chemical Approach to Nanomaterials”, RSC