November 1, 2026
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JPSilwania
November 1, 2026
Kohlrausch’s Law
Kohlrausch’s Law of Independent Migration of Ions: Kohlrausch experimentally measured the molar conductance at infinite dilution for several pairs of strong electrolytes and found characteristic regularities. For pairs of electrolytes that share a common cation (for example, KF and KCl; NaF and NaCl) the difference in their limiting molar conductances is the same: Λm0 (KCl) […]November 1, 2026
Electrolytic Cells, Electrolysis & Products of Electrolysis
What is Electrochemistry? Electrochemistry is the branch of chemistry that studies the relationship between chemical reactions and electrical energy. It includes the generation of electricity from spontaneous chemical reactions and the use of electrical energy to drive non-spontaneous reactions. Electrochemical Cells An electrochemical cell is a device that converts chemical energy into electrical energy or […]November 1, 2026
Variation of Conductivity & Molar Conductivity with Concentration
What is Specific Conductivity?Specific conductivity or conductivity of an electrolytic solution at any given concentration is the conductance of unit volume of solution. It is the conductance when kept between two platinum electrodes with a unit area of cross-section.The electrodes are at a distance of unit length.Conductivity decreases with a decrease in concentration as the […]November 1, 2026
Nernst Equation, Conductance, & Conductivity
Nernst Equation Definition: The Nernst equation is a fundamental relation in electrochemistry. It relates the electromotive force of an electrochemical cell to its standard cell potential, temperature, and the concentrations or activities of the reactants and products. This relation was derived by Walther Nernst. Derivation from Thermodynamic Principles For a general cell reaction, the Gibbs […]November 1, 2026
Electrochemical Cells, Galvanic Cells & Measurement of Electrode Potential
Electrochemical Cells An electrochemical cell consists of two electrodes, which are metallic conductors, in contact with an electrolyte, which is an ionic conductor. An electrode and the electrolyte in contact with it together form an electrode compartment. Electrochemical cells are classified into the following types: Note: Oxidation always takes place at the anode and reduction […]November 1, 2026
NCERT Solutions: Electrochemistry
Page No.36 – Intext Questions Q2.1: How would you determine the standard electrode potential of the system Mg2+ | Mg?Ans: The standard electrode potential of Mg2+ | Mg can be measured with respect to the standard hydrogen electrode, represented by Pt(s), H2(g) (1 atm) | H (aq)(1 M). A cell, consisting of Mg | MgSO4 (aq 1 […]November 1, 2026
Mnemonics: Electrochemistry
Introduction Prepare to unlock the essentials of electrochemistry with concise, easy-to-remember mnemonics that simplify rules and procedures used in competitive examinations. Each mnemonic below is followed by a clear explanation and, where helpful, an example or a short application to connect the memory aid to the underlying chemical principle. Use the mnemonics as rapid-recall tools […]November 1, 2026
Revision Notes: Electrochemistry
Introduction Electrochemistry is the study of production of electricity from the energy released during a spontaneous chemical reaction and the use of electrical energy to bring about non-spontaneous chemical transformations. Electrochemical Cells A spontaneous chemical process is the one which can take place on its own and in such a process the Gibb’s energy of […]November 1, 2026