Chemistry

Fundamental Postulates of Gas Molecules Heat is generated due to the motion of gas molecules. It is the kinetic theory of gases. From the kinetic…

Molecular Kinetic Theory of Gases We know that solids, liquids and gases are composed of innumerable tiny particles. These particles are called molecules of the…

Verification of Boyle’s Law Theory: Temperature remaining constant, the volume of a fixed mass of a gas is inversely proportional to the pressure on it.…

Amalgam electrode in Half-Cells A half cell is one of the two electrodes in a galvanic cell or simple battery. For example, in the Zn-Cu…

Metal-metal ion electrode in Half-Cells A half cell is one of the two electrodes in a galvanic cell or simple battery. For example, in the…

Half-Cells A half cell is one of the two electrodes in a galvanic cell or simple battery. For example, in the Zn-Cu battery, the two…

Measurement of E.M.F of Electrochemical Cells When current is drawn from a cell its e.m.f. gradually drops as chemical energy is being converted into electrical…

Weston Standard Cell The accuracy of measurement of e.m.f of a cell by the Poggendorf method depends on the constancy of the potential of the…

Universal gas constant If the mass of any gas is one gram mole, then the value of K becomes same for all the gases and…

Equation of a Perfect gas Let pressure, volume and temperature of a given mass of an ideal gas be respectively P, V and T. From…