action of heat on substances

Action of Heat on Substances - Heat is a very powerful form of energy. Although there are other forms of energy like light and electricity, heat is the most commonly used agent for initiating all chemical changes. Various classes of substancesh..

Heat is a very powerful form of energy. Although there are other forms of energy like light and electricity, heat is the most commonly used agent for initiating all chemical change..

When heated to 1200 K, it decomposes to give quicklime and carbondioxide...

When powdered borax is heated strongly in a bunsen-flame, it loses water of crystallization and forms colorless, transparent glass-like bead, made up of sodium metaborate and boric anhydride...

When heated to about 500 o C, sulphur trioxide decomposes to give sulphur dioxide and oxygen...

When heated to above 500 o C hydrogen chloride gas dissociates into hydrogen and chlorine..

It is well known that a base is a substance that combines with an acid to form salt and water onl..

Introduction - It is well known that a base is a substance that combines with an acid to form salt and water only. In the equations given below, the metal oxides behave as base..

Substance specific heat in SI system –J/kg/K Lead 128 Silver 134 Copper 386 Aluminium 900 Iron 448 Ethyl alcohol 2430 Water 4190 sea water 3900 Specific heat of copper is 386 J/kg/K means '1kg of c..

Action of Heat on Sulphur - When heated, sulphur undergoes a series of characteristic changes. Sulphur can melt at two different temperatures. a) If heated rapidly, it melts at 112.8 o C. b) But if heated slowly it will melt only at 118.6 o C. Roll ..