Question

some important notes on KINETIC THEORY OF MATTER ?​

Answer 1

Answer:

The main postulates of kinetic theory of matter are : (i) Matter consists of small particles called molecules. (ii) The molecules are always in random motion. (iii) The molecules attract one another with a force which decreases as the distance between them increases.

Answer 2

Important notes :-

* Molecules of a gas are very much apart from one another , hence practically they exert no force of attraction on one another .

* The pressure exerted by gas is due to exchange of momentum of the molecules due to Collision with the walls of vessel .

* Average kinetic energy of the molecules of gas is directly proportional to its absolute temperature.

* Most probable speed of the gas Vmp is the speed with which maximun number of molecules of the gas move .

* When a gas is compressed , then the work done in Compressing the has adds to the kinetic energy , so the temperature of gas increases .

* Pressure of the gas is 2/3 of the total kinetic energy of the molecules per unit volume .

* The distance travelled by a molecule between two successive collisions is called nearn free path .

* The expansion of solids is due to asymmetric nature of potential energy curve.

* Root mean square velocity of the molecules of the gas in inversely proportional to square root of molecular weight of gas .

* Absolute Zero is that temperature at which a molecular Imotion censes .