Kinetic theory & it's main points

  *Introduction* 

The kinetic theory is so named because it deals with property of particles which is so crucial in understanding the three states of matter namely the motion of particles . Because the particles are  in constant motion , they possess kinetic energy which tends to keep the particles well spaced out in any substance . This in terms of kinetic energy . 

*Main points * 

1= The gaseous state is the one in which the molecules are widely separated from one another but having negligible volume . The gases are easy to compress due to large empty spaces . 

2= The gas molecules are in continuous motion , traveling in straight paths between collisions , but in random directions . The average distance between collisions is the mean free path . 

3= The molecules collide with one another and with the walls of container , but these collisions are perfectly elastic ( result in no loss of energy ) 

4= In an ideal gas , there are no attractive or repulsive forces between molecules . Thus each molecules acts quite independently of others . 

5= The average kinetic energy of gas molecules depends upon the absolute temperature . At any given temperature , the molecules of all gases have the Same average kinetic energy ( 1/2mv ) . 

6= Gas pressure is the result of collision of gas molecules with the walls of the container  .