Engineering Chemistry Pdf Notes – EC Notes | Free Lecture Notes download

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Here you can download the free Engineering Chemistry Pdf Notes – EC Pdf Notes materials with multiple file links to download. Engineering Chemistry Notes Pdf – EC Notes Pdf starts with the topics covering ELECTROCHEMISTRY AND BATTERIES, Concept of Electro Chemistry, Conductance-electrolyte in solution (Specific conductivity,Equivalent Conductivity and Molar Conductivity), Variation of specific conductivity with dilution, etc

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Engineering Chemistry Pdf Notes – EC Pdf Notes

Link – Complete Notes

Unit 1

Link – Unit 1

Unit 2

Link – Unit 2

Unit 3

Link – Unit 3

Unit 4

Link – Unit 4

Unit 5

Link – Unit 5

Engineering Chemistry Notes Pdf – EC Notes Pdf


  • Concept of Electro Chemistry
  • Conductance-electrolyte in solution (Specific conductivity,Equivalent Conductivity and Molar Conductivity)
  • Variation of specific conductivity with dilution
  • Variation of Equivalent Conductivity with dilution
  • Galvanic cells
  • Reference electrode: Saturated calomel electrode
  • Quinhydrone electrode
  • Ion selective electrode
  • Types of ion-selective membrane
  • Concentration cell and its types
  • Galvanic series
  • Batteries and Applications
  • Fuel cells and Applications


  • Types of corrosion and its control methods
  • Corrosion in nonmetals etc
  • Solvent,Additives,Color changing paint…etc


  • Types of polymerization
  • Plastics
  • Compounding and Fabrications of plastics
  • Preparations , properties , engineering applications of PVC,Teflon and Bakelite.
  • Fibers – Characteristics – Preparation and Properties – Uses – Application
  • Rubbers – Natural Rubber and its Vulcanization
  • Elastomers


  • Hardness of water
  • Types of Hardness
  • Estimations of temporary and permanent hardness of water by EDTA
  • Boilers Troubles
  • Treatment of Boiler feed water
  • Potable water


  • Adsorption and types
  • Isotherms
  • Colloids
  • Electrical and Optical properties , Micelles
  • Applications of Colloids in Industry


  • Fuels – Classifications
  • Solids Fuels
  • Liquid Fuels
  • Gaseous Fuels
  • Combustion
  • Determination of calorific values.


  • Definition
  • Phase diagrams
  • Two component systems
  • Heat Treatment based on Iron carbon phase diagram.


  • Composition , Setting and Hardening of Cement
  • Lubricants – classifications – characteristics – examples – properties
  • Refractories – classifications – characteristics – applications

Note :- These notes are according to the r09 Syllabus book of JNTUH.In R13 & R15,8-units of R09 syllabus are combined into 5-units in r13 syllabus.Click here to check all the JNTU Syllabus books


Frequently Asked Question

Q1: What does Engineering chemistry mean?

A1: Integration of advanced organic, analytical and electro-chemistry knowledge into the design curriculum of engineering is called Engineering chemistry. Students get to study and know about the design of large scale chemical manufacturing plants.

Q2: What is electro chemistry?

A2: Study of processes involved in the inter conversion of chemical energy and electrical energy is called electro chemistry.

Q3: Why and how do engineers use chemistry?

A3: Inventing economic ways of using energy and materials is the basic function of chemical engineers. The engineers utilize chemistry and engineering to turn raw materials into products which are usable like petrochemicals, industrial setting, large-scale plastics, medicine etc. Along with this, they include research and waste management.

Q4: What is the galvanic series for stagnant seawater? (Stagnant meaning low oxygen content)

A4: Galvanic series for stagnant seawater is as followed,

  • Platinum
  • Silver
  • Gold
  • Graphite
  • Palladium
  • Titanium
  • Stainless steel 316 (passive)
  • Stainless Steel 304 (passive)
  • Silicon bronze
  • Stainless Steel 316 (active)
  • Monel 400
  • Phosphor bronze
  • Admiralty brass
  • Cupronickel
  • Molybdenum
  • Red brass
  • Brass plating
  • Yellow brass
  • Naval brass 464
  • Uranium 8% Mo
  • Niobium 1% Zr
  • Tungsten
  • Stainless Steel 304 (active)
  • Tantalum
  • Chromium plating
  • Nickel (passive)
  • Copper
  • Nickel (active)
  • Cast iron
  • Steel
  • Lead
  • Tin
  • Indium
  • Aluminum
  • Uranium (pure)
  • Cadmium
  • Beryllium
  • Zinc platin

Order given may be changed in different environments

Q5: What are the advantages of batteries?

A5: Advantages of batteries include,

  • Different shapes and sizes of the batteries are available which efficiently fits the devices they power
  • When it comes to weighing, batteries weigh much lighter than the other different energy equivalent secondary batteries
  • There is no memory effect
  • Batteries have high open circuit voltage when compared with aqueous batteries thus increasing the amount of power that can be transferred at a lower rate of current
  • Batteries have a better self discharge rate.
Q6: What are the disadvantages of batteries?
A6: Disadvantages of batteries include,
– Batteries inhibit the iron transport by depositing charging forms inside the electrolyte. Cell’s capacity diminishes over time. Reduction in cell’s ability to deliver current occurs through increase in internal resistance
– Elevated temperatures and high charge levels quickly leads to capacity loss
– A unit which is full almost all the time at 25 degree Celsius irreversibly loses approximately 20% of the capacity per year. Shortening battery life, poor ventilation may increase temperature.

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One comment

  1. useful notes
    i really appreciate ….

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