Category: Pure Sciences

Concept of Electrode Potential: Nernst Theory

Post author By Hemant More
Post date December 24, 2019
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Science > Chemistry > Electrochemistry > Nernst Theory In this article, we shall study the Nernst theory of electrode potential, Nernst equation, and its use. Single Electrode or Half cell or Electrode Couple: A single electrode or half cell or electrode couple is produced when a metal is dipped in the solution of its own […]

Tags Anion, Anode, Button cell, Calomel electrode, Cathode, Cation, Cell reaction, Charging of cell, Chlorine gas electrode, Construction of cell, Convention of representation of cell, Coulomb, Daniel cell, De-electronation, Discharging of cell, Dry Cell, Electrochemical cell, Electrode, Electrode couple, Electrolyte, Electrolytic cell, Electronation, emff of cell, Fuel cell, Galvanic cell, Gas electrode, Indicator electrode, Lead accumulator, Leclanche cell, Maintenance of lead accumulator, Metal - metal ion electrode, Metal-Sparingly Soluble Metal Salt Electrode, Nernst equation, Nernst theory, Nickel cadmium cell, Non-electrolyte, Osmotic pressure, Oxidation, Oxidation potential, Oxygen gas electrode, Primary cell, Redox electrode, Redox potential, Redox reaction, Reduction, Reduction potential, Reference electrode, Reversibility of cell, Salt bridge, Secondary cell, SHE, Single electrode, Solution pressure, Standard Hydrogen Electrode, Voltaic cell, watt, Working of the cell

Physical Chemistry

Types of Electrodes

Science > Chemistry > Electrochemistry > Types of Electrodes In this article, we shall study different types of electrodes, their representation, writing cell reactions, and finding e.m.f. of a cell. There are four types of electrodes Gas electrodes Metal–sparingly soluble metal salt electrodes Metal – metal ion electrodes Redox Electrodes Gas Electrodes: A gas electrode […]

Tags Anion, Anode, Button cell, Calomel electrode, Cathode, Cation, Cell reaction, Charging of cell, Chlorine gas electrode, Construction of cell, Convention of representation of cell, Coulomb, Daniel cell, Discharging of cell, Dry Cell, Electrochemical cell, Electrode, Electrolyte, Electrolytic cell, emff of cell, Fuel cell, Galvanic cell, Gas electrode, Indicator electrode, Lead accumulator, Leclanche cell, Maintenance of lead accumulator, Metal - metal ion electrode, Metal-Sparingly Soluble Metal Salt Electrode, Nickel cadmium cell, Non-electrolyte, Oxidation, Oxidation potential, Oxygen gas electrode, Primary cell, Redox electrode, Redox potential, Redox reaction, Reduction, Reduction potential, Reference electrode, Reversibility of cell, Salt bridge, Secondary cell, SHE, Standard Hydrogen Electrode, Voltaic cell, watt, Working of the cell

Physical Chemistry

Reference Electrodes

Science > Chemistry > Electrochemistry > Reference Electrodes The electrode whose potential is arbitrarily fixed or is exactly known at a given constant temperature is known as a reference electrode. Using reference electrodes unknown potential of any other single electrode can be found out e.g. two commonly used reference electrodes are standard hydrogen electrode (SHE) […]

Physical Chemistry

Representation of Electrochemical Cell

Post author By Hemant More
Post date December 24, 2019
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Science > Chemistry > Electrochemistry > Representation of Electrochemical Cell In this article, we shall study the representation of cell using conventions on paper. We shall also discuss the construction and working of the salt bridge. Electrochemical (Voltaic or Galvanic) cell consists of two half cells. In one half-cell, an oxidation reaction takes place and […]

Physical Chemistry

Secondary Electrochemical Cells

Post author By Hemant More
Post date December 24, 2019
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Science > Chemistry > Electrochemistry > Secondary Electrochemical Cells In this article, we shall study the construction and working of lead accumulator, and Ni-Cd cells. Lead Accumulator: A lead accumulator is a secondary cell because electrical energy is not generated within the cell itself but it is previously stored in it from the external source. […]

Physical Chemistry

Primary Electrochemical Cells

Post author By Hemant More
Post date December 23, 2019
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Science > Chemistry > Electrochemistry > Primary Electrochemical Cells Types of Electrochemical Cell: An electrochemical cell is a device which is used to generate electrical energy at the expense of spontaneous oxidation-reduction reaction. An electrochemical cell is also known as a galvanic cell or a voltaic cell. In an electrochemical cell, chemical energy is converted into […]

Physical Chemistry

Electrolysis and its Applications

Post author By Hemant More
Post date December 23, 2019
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Science > Chemistry > Electrochemistry > Electrolysis and its Applications A process in which electrical energy is converted into chemical energy by using a suitable device known as an electrolytic cell is called electrolysis. Electrolysis of Fused NaCl: Construction of Electronic Cell or Electrolytic Cell: The electrolytic cell consists of a vessel made up of […]

Physical Chemistry

Types of Cells

Science > Chemistry > Electrochemistry > Types of Cells There are two types of cells: a) Electrolytic cell and b) Electrochemical cells Conversion of Chemical Energy into Electrical Energy: Certain chemical reactions have the capacity to take place spontaneously and can produce electrical energy when carried under appropriate conditions, like proper device, the proper concentration, pressure, […]

Physical Chemistry

Ionic Conduction

Science > Chemistry > Electrochemistry > Ionic Conduction The conductance of an ion depends on its size in an aqueous medium or in the solvent. Bigger is the ionic size lesser is its conductance Example: The order of size of hydrated ionic radii of alkali metal cations is as Li+(aq) < Na+(aq) < K+(aq)< Rb+(aq)< Cs+(aq). Hence the ease […]

Physical Chemistry

Introduction to Electrochemistry

Post author By Hemant More
Post date December 18, 2019
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Science > Chemistry > Electrochemistry > Introduction In this article, we shall study the concept of electrochemistry, its cause, and its terminology. Electrochemistry is a branch of chemistry which deals with the interrelationship between chemical energy and electrical energy. The study of electrochemistry is broadly divided into two branches. a) Conversion of chemical energy into […]

Tags Conductance, Conductivity, Electrochemistry, Electrolytic conductors, Electronic conductors, Oxidant, Oxidation, Oxidizing agent, Redox reaction, Reducing agent, Reductant, Reduction, Resistance, Resistivity, Specific conductance, Specific resistance