Engineering chemistry 1 syllabus
UNIT I POLYMER CHEMISTRY
Introduction: Classification of polymers – Natural and synthetic polymers; Thermoplastic and Thermosetting. Functionality – Degree of polymerisation. Types and mechanism of addition polymerization,(Free Radical, anionic and cationic polymerization); condensation and copolymerization. Properties of polymers: Tg, Tacticity, Molecular weight – weight average, number average and polydispersity index. Techniques of polymerization: Bulk, emulsion, solution and suspension. Preparation, properties and uses of Nylon 6,6, and Epoxy resin.
UNIT II CHEMICAL THERMODYNAMICS
Terminology of thermodynamics – Second law: Entropy – entropy change for an ideal gas, reversible and irreversible processes; entropy of phase transitions; Clausius inequality. Free energy and work function: Helmholtz and Gibbs free energy functions (problems); Criteria of spontaneity; Gibbs Helmholtz equation (problems); Clausius-Clapeyron equation; Maxwell relations – Van’t Hoff isotherm and isochore(problems).
UNIT III PHOTOCHEMISTRY AND SPECTROSCOPY
Photochemistry: Laws of photochemistry – Grotthuss–Draper law, Stark Einstein law and Lambert Beer Law. Quantum efficiency – determination- Photo processes – Internal Conversion, Inter-system crossing, Fluorescence, Phosphorescence, Chemiluminescence and Photo-sensitization. Spectroscopy: Electromagnetic spectrum – Absorption of radiation – Electronic, Vibrational and rotational transitions. UV-visible and IR spectroscopy – principles, instrumentation (Block diagram only).
UNIT IV PHASE RULE AND ALLOYS
Phase rule: Introduction, definition of terms with examples, One Component System– water systems – Reduced phase rule – Two Component Systems– classification – lead-silver system, zinc-magnesium system. Alloys: Introduction- Definition- Properties of alloys– Significance of alloying, Functions and effect of alloying elements– Ferrous alloys– Nichrome and Stainless steel – heat treatment of steel; Nonferrous alloys – brass and bronze.
UNIT V NANOCHEMISTRY
Basics – distinction between molecules, nanoparticles and bulk materials; size-dependent properties. nanoparticles: nanoclusters, nanorods , nanotube(CNT) and nanowires. Synthesis: precipitation, thermolysis, hydrothermal, solvothermal, electrodeposition, chemical vapour deposition, laser ablation; Properties and applications
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