Engineering Chemistry Notes from SIET, Tumkur

Here is a NOTES on Engineering Chemistry from SIET, Tumkur by Dr. Chandrashekhar, Mrs. Sujhatha and Mrs. Swetha Rao. This NOTES is very useful for the first year students of all Branches. The notes have been prepared to keep students in mind. This is one of the major subjects of 1^st year to score. The Topics covered inside this material are

Electrode Potential and Cells

-Introduction,  

-Differentiation  between  galvanic  and  electrolytic  cells,

-Construction of galvanic cell,

-EMF of a cell , Origin of single electrode potential,   

-Sign   convention  and   cell   notation,   Standard   electrode potential,

-Derivation of Nernst equation for single electrode potential.

-Types of  electrodes: Reference electrodes –  Primary and  secondary ,

-Limitations of standard hydrogen electrode,

-Construction and working of calomel    electrode  and  Ag  –  AgCl  electrode,  

-Measurement of  single electrode potential,

-Numerical problems on electrode potential and EMF of  a  cell,  

-Ion  selective  electrode:  Glass  electrode  –  Construction  ,

-Determination of pH of a solution using glass electrode.

Batteries and Fuel Cells

-Basic concepts, Battery characteristics, primary, secondary, reserve batteries and super capacitors with examples.

-Classical batteries: Construction, working and applications of Zn – MnO2 battery,

-Lead acid storage battery and Ni – Cd battery.

-Modern batteries: Construction and working and applications of Zn – air,

-Ni – metal hydride and             Li – MnO2 batteries

-Fuel cells – Differences between battery and fuel cell,

-Construction and working of H2 – O2 and CH3OH– O2 fuel cells

Corrosion and its control

-Electrochemical theory of corrosion,

-Galvanic series, Types of corrosion- Differential metal corrosion,

-Differential aeration corrosion(Pitting and water line corrosion) ,

-Stress corrosion (caustic embrittlement in boilers), Factors affecting the rate of corrosion.

-Corrosion  control:  Inorganic  coatings  –  Anodizing  and  phosphating,

-Organic coating – painting,

-Metal coatings – Galvanizing and Tinning, Corrosion inhibitors, Cathodic protection.

Metal Finishing

-Technological importance,

-Theory of electroplating, Significance of Polarization,

-Decomposition potential and Overvoltage in electroplating.

-Effect of plating variables on the nature of electrodeposits.

-Electroplating process, Electroplating of Copper and Chromium.

-Distinction       between       electroplating       and       electrolessplating, Electolessplating of copper and nickel.

Chemical fuels and Photovoltaic cells

-Introduction, Classification of chemical fuels,

-Calorific value – High and Low calorific values,

-Determination of calorific value –solid or liquid fuel using  Bomb  calorimeter,  

-Gaseous  fuel  using  Buoy’s     calorimeter, Numerical problems.

-Petroleum   –   Cracking   by   fluidized   catalytic   cracking   process,

-Reformation  of  petrol,  Octane  and  Cetane  numbers.  

-Knocking  – mechanism and harmful effects.

-Antiknocking agents – TEL, Catalytic converters – Principle and working,

-Unleaded petrol, Power alcohol and Biodiesel.

-Photovoltaic cells – Production of solar grade silicon, Doping of silicon,

-Construction and working of photovoltaic cell, Advantages.

The Phase rule and Instrumental methods of analysis

-Statement of Gibb’s phase rule and explanation of the terms involved,

-Phase diagram of one component system – water system, Condensed phase rule ,

-Phase diagram of two component system- Eutectic Pb – Ag system and Fe – C system.

-Application – Desilverization of lead.

-Instrumental  methods  of  analysis-  Theory  ,  

-Instrumentation  and applications of Colorimetry, Potentiometry ,

-Conductometry and Flame photometry.

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