Electrochemistry



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Contents

Introduction of Electrochemistry


Description: Study of chemical reactions involving electron transfer and electrical energy conversion.


Electrochemical Cells - I


Description: Devices converting chemical energy into electrical energy through redox reactions.


Electrochemical Cells - II


Description: Comprises galvanic and electrolytic cells with distinct operational mechanisms.


IUPAC Convention


Description: Standardized nomenclature and representation of electrochemical reactions and cell notations.


Standard Reduction Potential


Description: Potential of a half-cell under standard conditions relative to the hydrogen electrode.


Nernst Equation


Description: Calculates electrode potential considering ion concentration and temperature.


Nernst Equation for Cell


Description: Determines overall cell potential using standard potential and reaction quotient.


Electro Chemical Cell & Gibb's Energy


Description: Relates cell potential to Gibbs free energy, indicating spontaneity of reaction.


Conductance of Electrolytic Solution


Description: Measures the ability of ions in solution to conduct electricity.


Classification of conductivity


Description: Includes specific, molar, and equivalent conductivity based on ion concentration.


Measurement of the conductivity of the ionic cell


Description: Involves Wheatstone bridge and conductivity cell for precise measurement.


Effect of Concentration or Dilution


Description: Conductivity decreases with dilution due to reduced ion interaction.


Kohlrausch law of independent migration of ions


Description: States that individual ion conductivities remain constant at infinite dilution.


Application of Kohlrausch law


Description: Used to determine weak electrolyte dissociation and ion transport numbers.


Electrolytic cells and Electrolysis & Faraday's Laws


Description: Electrolysis involves redox reactions; Faraday’s laws relate charge, mass, and chemical changes.


Second Law of Faraday's Electrolysis


Description: Mass deposited is proportional to charge passed and equivalent weight of substance.


Second Law of Faraday's Electrolysis


Description: Mass deposited is proportional to charge passed and equivalent weight of substance.


Batteries - I


Description: Convert stored chemical energy into electrical energy for practical applications.


Batteries - II


Description: Classified as primary and secondary batteries based on rechargeability.


Fuel Cell & Corrosion


Description: Generate electricity from fuel oxidation; corrosion involves metal deterioration due to oxidation.


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