Categories
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) […]

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Physical Chemistry

Representation of Electrochemical Cell

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 […]

Categories
Physical Chemistry

Secondary Electrochemical Cells

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. […]

Categories
Physical Chemistry

Primary Electrochemical Cells

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 […]

Categories
Physical Chemistry

Electrolysis and its Applications

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 […]

Categories
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, […]

Categories
Industrial Disputes Act

Appropriate Government

Indian Legal System > Civil Laws > Labour Laws > Industrial Disputes Act, 1947 > Appropriate Government In this article, we shall understand the meaning of important term “Appropriate Government”. Various power are given to the appropriate Government under the Industrial disputes act, 1947. The Industrial Disputes Act has made provision for the investigation and […]

Categories
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 […]

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Physical Chemistry

Introduction to Electrochemistry

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 […]

Categories
Human Biology

White Blood Corpuscles (Leucocytes)

In this article, we are going to study another important component of blood plasma i.e. White blood corpuscles, their types, structures, and functions. They are colourless, nucleated, amoeboid (irregular shape) and phagocytic cells larger than RBC’s. Their size ranges from 12 μm to 20 μm. They have mitochondria, Endoplasmic reticulum, Golgi complex, ribosomes, and centrioles. […]