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ENGINEERING CHEMISTRYII
NOTES ON LESSONUNITI
ELECTRO CHEMISTRY
Introduction to electrochemistry Types of conductors Types of electrolytes Cell terminology
Electrochemical cells (or) galvanic cells Daniel cell Representation of a galvanic cell
Reversible and irreversible cells EMF of a cell
Measurement of emf of a cell Single electrode potential(E)
Standard electrode potential(E0) Nernst equation for electrode potential Problems based on nernst equation
Reference electrodes(or) standard electrodes Primary reference electrode
o Standard hydrogen electrode Secondary reference electrode
o Standard calomel electrode Types of electrodes
Glass electrode(internal reference electrode) Determination of PH of a solution using glass electrode
Ion selective electrodes (ISE)
Describtion Types of ion selective electrodes
o Glass membrane electrodeo Solid state membrane electrodeo Liquid membrane electrodeo Heterogenous membrane electrodeo Enzyme electrode
Determination of concentration of a metal ion using ISE Application of ISE Limitations
Electro chemical series Definition Significance(or) applications of electrochemical series
Potentiometer titrations Redox titration Precipitation titration
Conductometric titrations Acid base titrations.
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UNITII
CORROSION AND CORROSION CONTROL
Introduction to corrosion and its types Chemical corrosion(dry corrosion)
o Pilling -Bedworth ruleo
Mechanism of chemical corrosion
o Corrosion by oxygeno Corrosion by hydrogeno Liquid metal corrosion
Electro chemical corrosion (wet corrosion)o Mechanism of electrochemical corrosiono Evolution of hydrogen typeo Absorption of oxygen typeo Difference between chemical corrosion
and electrochemical corrosion
types of electrochemical corrosion galvanic corrosion differential aeration(or) concentration cell corrosion
factors influencing the rate of corrosion nature of the metal nature of the environment
corrosion control control of corrosion by modifying the metal by cathodic protection
o sacrificial anodic protection methodo impressed current cathodic protection
method
by modifying the environment corrosion inhibitors
anodic inhibitors cathodic inhibitors vapour phase inhibitors
protective coatings types of protective coatings
paints constituents and their functions of a paint mechanism of drying of drying oil
metallic coatings hot dipping electroless plating electro plating anodization
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UNITIII
FUELS AND COMBUSTION
Introduction, analysis of coal The proximate analysis
o
Determination of moisture in coalo Determination of volatile matter in coalo Determination of ash in coalo Determination of fixed carbon
The ultimate analysiso Determination of carbon and hydrogen in coalo Determination of hydrogeno Determination of nitrogeno Determination of sulphur in coalo Determination of oxygen in coal
Metallurgical coke Characteristics of metallurgical coke Manufacture of metallurgical coke by Otto Hoffmanns
method
Petroleum of gasoline Processing and fractions Cracking catalytic cracking Knocking Octane number Cetane number
Synthetic petrol Bergius process (hydrogenation of coal) Fisher- Tropsch process
Gaseous fuels Water gas Producer gas Compressed natural gas ( CNG) Liquefied petroleum gas (LPG) Biogas
Calorific value Units of calorific value Determination of calorific value
Gross calorific value and net calorific value Theoretical calculations of calorific values Flue gas analysis: Orsats apparatus
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UNITIV
PHASE RULE AND ALLOYS
Introduction, explanation of terms involved Phase Component Degree of freedom Phase diagram Phase rule
One component system Water system
Condensed phase rule Two component system
Simple eutectic systems (Binary alloys) Lead silver system
Construction phase diagram by thermal analysis Copper nickel alloy system
Alloys Purpose of making alloys Classification of alloys
Ferrous alloys Nichrome Stainless steel
Non ferrous alloys Brass Bronze
Heat treatment of steel Hardening (quenching) Tempering Annealing
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UNITV
ANALYTICAL TECHNIQUES
Explanation of terms used in absorption spectra Beers lamberts law
Problems
UV and visible spectroscopy Principle Instrumentation (block diagram only) Problems
IR spectroscopy Principles Instrumentation (block diagram only) Problems
Colorimetric estimation of few metal ions Estimation of iron
Flame photometry Principle Instrumentation (block diagram only) Estimation sodium by flame photometry
Atomic absorption spectroscopy Principle Instrumentation (block diagram only) Estimation of nickel by atomic absorption
spectroscopy.
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