Charles Laws

Charles Laws

It is a quanitative relationship between temperature and volume of gas and was given by french scientist J. Charles in 1787.

 Definition

 The volume of the given mass of a gas is ditectly proportional to the absolute temperature when the pressure is kept constant.
                       V proportional T
                              V=KT
                              V/T=K
  If the temperature is changed from T1 to T2 and volume changes from V1 to V2,-then
                         V1/T1=K
                         V2/T2=K 
                       V1/T1=V2/T2
The,ratio of volume to temperature remains constant for the,same,amount of a gas at same pressure. 

 Experimental Verification of Charles Law

 Let is consider a certain amount of a gas enclosed in a cylinder fitted with a movable piston. The volume of the gas is V1 and its temperature is T1. When the gas in the cylinder is heated both volume and temperature of the gas increase. The newest value and temperature are V2 and T2 reSpectively. 
 Here
                             
                                  V1/T1=,V2/T2
 Hence charles law is varified.