CY6151 ENGINEERING
CHEMISTRY - I L T
P C
3 0
0 3
OBJECTIVES:
· To make the students conversant with basics of polymer chemistry.
· To make the student acquire sound knowledge of second law of thermodynamics and
second law based derivations of importance
in engineering applications in all disciplines.
· To acquaint
the
student
with concepts
of important
photophysical
and photochemical processes and spectroscopy.
· To develop an understanding of the basic concepts of phase rule and its applications to single and two component systems and appreciate the purpose and significance of alloys.
· To acquaint the
students
with the
basics of nano materials,
their
properties and applications.
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 (Free
Radical, cationic and anionic); 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
9
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
9
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
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- 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;
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, electrode position, chemical
vapour
deposition, laser
ablation; Properties and applications
OUTCOMES:
TOTAL :45 PERIODS
· The knowledge gained on polymer chemistry, thermodynamics. spectroscopy, phase rule
and nano materials will provide a strong platform to understand
the concepts on
these
subjects for further learning.
TEXT BOOKS:
1. 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
REFERENCES:
1. Dara S.S, Umare S.S, “Engineering Chemistry”, S. Chand & Company Ltd., New Delhi
2010
2. Sivasankar B., “Engineering Chemistry”, Tata McGraw-Hill
Publishing Company,
Ltd., New
Delhi, 2008.
3. Gowariker V.R. , Viswanathan N.V. and JayadevSreedhar, “Polymer Science”, New Age
International
P (Ltd.,),
Chennai, 2006.
4. Ozin G.
A. and Arsenault A.
C., “Nanochemistry: A Chemical
Approach to Nanomaterials”, RSC
Publishing, 2005.
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