CBSE Class 12-science Chemistry Electrochemistry
Prepare to score more marks with TopperLearning’s CBSE Class 12 Science Chemistry Electrochemistry study materials. Study the concept of electrolysis and learn about electrochemical cells with our expert resources. Our online revision notes can help you learn the key concepts in electrochemistry such as Kohlrausch’s law, conductivity of solutions and more.
In your Chemistry exam, you may find numericals based on Faraday’s laws. Practise these numericals with our CBSE Class 12 Science Chemistry textbook solutions. Our solutions for previous years’ papers and sample papers will support you with problem-solving methods too. If your concepts are unclear, watch our Chemistry concept videos and test your conceptual knowledge with our practice tests.
Conductivity of Solutions
Discuss the classification of substance as conductors and insulators. Learn the definition of specific conductivity and molar conductivity.Kohlrausch's Law
Kohlrausch's law states that at infinite dilution, each ion makes a definite contribution towards the molar conductivity of the electrolyte irrespective of the nature of the other ion with which it is associated.
Kohlrausch's law is helpful in determining the limiting molar conductivities of weak electrolytes.
At infinite dilution, the concentration approaches zero and degree of dissociation approaches unity.Electrolysis
Understand the concept of electrolysis and Faraday's laws of electrolysis, construction and working of electrolytic cells. Numericals on Faraday's law.Electrochemical Cells
Direct Redox reactions convert chemical energy into heat energy.
Electrochemical cell is a device which converts chemical energy into electrical energy.
The cell is represented by writing the anode on the left and cathode on the rightStandard Electrode Potential
The standard electrode potential of the electrode can be evaluated using a reference electrode called standard hydrogen electrode.
The arrangement of various elements in the order of increasing values of standard reduction potentials is called electrochemical series.
Metals at the top of the electrochemical series are good reducing agents.Nernst Equation
Understand Nernst equation. Calculate cell potential, Equilibrium constant and Gibb's energy using Nernst equation.Batteries
Classification of cell as primary and secondary. Construction working and application of Dry, Mercury, Fuel, Lead storage and Nickel cadmium cell.Corrosion
Understand the meaning of corrosion. Electrochemical process, factors, prevention of corrosion, rusting of iron.
