ENGINEERING CHEMISTRY[As per Choice Based Credit System (CBCS) scheme](Effective from the academic year 2015 -2016)SEMESTER - I/II

Subject Code - 15CHE12/15CHE22
IA Marks 20
Number of Lecture Hours/Week - 04
Exam Marks - 80
Total Number of Lecture Hours - 50
Exam Hours - 03

Course objectives:
To provide students with knowledge of engineering chemistry for building
technical competence in industries, research and development in the following
• Electrochemistry & Battery Technology.
• Corrosion & Metal Finishing.
• Fuels & Solar energy.
• Polymers.
• Water Technology & Nano Materials.

Module -1
Electrochemistry and Battery Technology
Electrochemistry: Introduction, Derivation of Nernst equation forelectrode potential. Reference electrodes: Introduction,construction, working and applications of calomel and Ag / AgClelectrodes. Measurement of electrode potential using calomelelectrode. Ion selective electrode: Introduction; Construction andworking of glass electrode, determination of pH using glasselectrode. Concentration cells: Electrolyte concentration cells,numerical problems.
Battery Technology: Introduction, classification - primary,secondary and reserve batteries. Characteristics - cell potential,current, capacity, electricitystorage density, energy efficiency, cycle life and shelf life. Construction, working and applications of ZincAir, Nickel- metal hydride batteries. Lithium batteries: Introduction,construction, working and applications of Li-MnO2 and Li-ionbatteries.

Fuel Cells: Introduction, difference between conventional cell andfuel cell, limitations & advantages. Construction, working &applications of methanol-oxygen fuel cell with H2SO4 electrolyte.  10hours

Module -2
Corrosion and Metal Finishing:
Corrosion: Introduction, electrochemical theory of corrosion,galvanic series. Factors affecting the rate of corrosion: ratio ofanodic to cathodic areas, nature of metal, nature of corrosionproduct, nature of medium – pH, conductivity, and temperature.
Types of corrosion- Differential metal, differential aeration (Pittingand water line) and stress. Corrosion control: Inorganic coatingsAnodizing of Al and phosphating; Metal coatings-Galvanization andTinning. Cathodic protection (sacrificial anodic and impressed
current methods).
Metal Finishing: Introduction, Technological importance.Electroplating: Introduction, principles governing-Polarization,decomposition potential and overvoltage. Factors influencing thenature of electro deposit-current density, concentration of metal ion& electrolyte; pH, temperature & throwing power of plating bath;additives- brighteners, levellers, structure modifiers & wettingagents. Electroplating of Nickel (Watt’s Bath) and Chromium(decorative and hard). Electro less plating: Introduction,distinction between electroplating and electro less plating, electroless plating of copper & manufactureof double sided PrintedCircuit Board with copper.10hours

Module - 3
Fuels and Solar Energy:
Fuels: Introduction, classification, calorific value- gross and net calorific values, determination of calorific value of fuel using bomb calorimeter, numerical problems. Cracking: Introduction, fluidized catalytic cracking, synthesis of petrol by Fishcher-Tropsch
process, reformation of petrol, octane and cetane numbers. Gasoline and diesel knocking and their mechanism, antiknocking agents, power alcohol & biodiesel.
Solar Energy: Introduction, utilization and conversion, photovoltaic cells- construction and working. Design of PV cells: modules, panels & arrays. Advantages & disadvantages of PV cells.Production of solar grade silicon: Union carbide process,purification of silicon (zone refining), doping of silicon-diffusion technique (n&p types).10 hours

Module - 4
Introduction, types of polymerization: addition and condensation,mechanism of polymerization- free radical mechanism taking vinylchloride as an example. Molecular weight of polymers: numberaverage and weight average, numerical problems. Glass transition temperature (Tg): Factors influencing Tg-Flexibility, inter molecularforces, molecular mass, branching & cross linking and stereoregularity. Significance of Tg. Structure property relationship:crystallinity, tensile strength, elasticity & chemical resistivity.Synthesis, properties and applications of PMMA (plexi glass),Polyurethane and polycarbonate. Elastomers: Introduction,synthesis, properties and applications of Silicone rubber.Adhesives: Introduction, synthesis, properties and applications of epoxy resin. Polymer Composites: Introduction, synthesis,properties and applications of Kevlar. Conducting polymers:Introduction, mechanism of conduction in Poly aniline and
applications of conducting poly aniline.10 hours

Water Technology and Nanomaterials:
Water Technology: Introduction, boiler troubles withdisadvantages &  prevention methods-scale and sludge formation,priming and foaming, boiler corrosion(due to dissolved O2, CO2 andMgCl2). Determination of DO, BOD and COD, numerical problemson COD. Sewage treatment: Primary, secondary (activated sludgemethod) and tertiary methods. Softening of water by ion exchangeprocess. Desalination of sea water by reverse osmosis & electro
dialysis (ion selective)..
Nano Materials: Introduction, properties (size dependent).Synthesis-bottom up approach (sol-gel, precipitation, gascondensation & chemical vapour condensation processes). Nanoscale materials- carbon nano tubes, nano wires, fullerenes,dendrimers, nano rods, & nano composites.10 hours

Course outcomes:
On completion of this course, students will have knowledge in:
• Electrochemical and concentration cells. Classical & modern batteriesand fuel cells.
• Causes & effects of corrosion of metals and control of corrosion.Modification of surface properties of metals to develop resistance tocorrosion, wear, tear, impact etc. by electroplating and electro lessplating.
• Production & consumption of energy for industrialization of country andliving standards of people. Utilization of solar energy for different usefulforms of energy.
• Replacement of conventional materials by polymers for variousapplications.
• Boiler troubles; sewage treatment and desalination of sea water, and
• Over viewing of synthesis, properties and applications of nanomaterials.

Question paper pattern:
• The question paper will have ten questions.
• Each full Question consisting of 16 marks
• There will be 2 full questions(with a maximum of  four sub questions)from each module.
• Each full question will have sub questions covering all the topics under amodule.
• The students will have to answer 5 full questions, selecting one fullquestion from each module.

Text  Books:
1. B.S.Jai Prakash, R.Venugopal, Sivakumaraiah & Pushpa Iyengar.,“Chemistry for Engineering Students”, Subhash Publications,Bangalore.
2. R.V.Gadag & A.Nityananda Shetty., “Engineering Chemistry”, I KInternational Publishing House Private Ltd. New Delhi.
3. P.C.Jain & Monica Jain.,“Engineering Chemistry”, Dhanpat RaiPublications, New Delhi.

Reference Books:
1. O.G.Palanna,“Engineering Chemistry”,Tata McGraw Hill Education Pvt.
Ltd. New Delhi, Fourth Reprint.
2. G.A.Ozin & A.C. Arsenault, “Nanochemistry A Chemical Approach to
Nanomaterials”, RSC publishing, 2005.
3. “Wiley Engineering Chemistry”, Wiley India Pvt. Ltd. New Delhi. Second
4. V.R.Gowariker, N.V.Viswanathan & J.Sreedhar., “Polymer Science”,
Wiley-Eastern Ltd.
5. M.G.Fontana., “Corrosion Engineering”, Tata McGraw Hill Publishing
Pvt. Ltd. New Delhi.
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