ENGINEERING CHEMISTRY II

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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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