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ENGINEERING CHEMISTRY – II
How to study this subject
AIM
To impart a sound knowledge on the principles of chemistry involving the different application
oriented topics required for all engineering branches.
OBJECTIVES
The student should be conversant with the principles electrochemistry, electrochemical
cells, emf and applications of emf measurements.
Principles of corrosion control
Chemistry of Fuels and combustion
Industrial importance of Phase rule and alloys
Analytical techniques and their importance.
UNIT I ELECTROCHEMISTRY 9
Electrochemical cells – reversible and irreversible cells – EMF – measurement of emf – Single
electrode potential – Nernst equation (problem) – reference electrodes –Standard Hydrogen
electrode -Calomel electrode – Ion selective electrode – glass electrode and measurement of
pH – electrochemical series – significance – potentiometer titrations (redox - Fe˛
+
vs dichromate
and precipitation – Ag
+
vs CI
-
titrations) and conduct metric titrations (acid-base – HCI vs,
NaOH) titrations,
UNIT II CORROSION AND CORROSION CONTROL 9
Chemical corrosion – Pilling – Bedworth rule – electrochemical corrosion – different types –
galvanic corrosion – differential aeration corrosion – factors influencing corrosion – corrosion
control – sacrificial anode and impressed cathodic current methods – corrosion inhibitors –
protective coatings – paints – constituents and functions – metallic coatings – electroplating (Au)
and electroless (Ni) plating.
UNIT III FUELS AND COMBUSTION 9
Calorific value – classification – Coal – proximate and ultimate analysis metallurgical coke –
manufacture by Otto-Hoffmann method – Petroleum processing and fractions – cracking –
catalytic cracking and methods-knocking – octane number and cetane number – synthetic petrol
– Fischer Tropsch and Bergius processes – Gaseous fuels- water gas, producer gas, CNG and
LPG, Flue gas analysis – Orsat apparatus – theoretical air for combustion.
UNIT IV PHASE RULE AND ALLOYS 9
Statement and explanation of terms involved – one component system – water system –
condensed phase rule – construction of phase diagram by thermal analysis – simple eutectic
systems (lead-silver system only) – alloys – importance, ferrous alloys – nichrome and stainless
steel – heat treatment of steel, non-ferrous alloys – brass and bronze.
UNIT V ANALYTICAL TECHNIQUES 9
Beer-Lambert’s law (problem) – UV-visible spectroscopy and IR spectroscopy – principles –
instrumentation (problem) (block diagram only) – estimation of iron by colorimetry – flame
photometry – principle – instrumentation (block diagram only) – estimation of sodium by flame
photometry – atomic absorption spectroscopy – principles – instrumentation (block diagram
only) – estimation of nickel by atomic absorption spectroscopy.
TOTAL: 45 PERIODS
TEXT BOOKS
1. P.C.Jain and Monica Jain, “Engineering Chemistry” Dhanpat Rai Pub, Co., New Delhi
(2002).
2. S.S.Dara “A text book of Engineering Chemistry” S.Chand & Co.Ltd., New Delhi (2006). 12
REFERENCES
1. B.Sivasankar “Engineering Chemistry” Tata McGraw-Hill Pub.Co.Ltd, New Delhi (2008).
2. B.K.Sharma “Engineering Chemistry” Krishna Prakasan Media (P) Ltd., Meerut (2001).
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