In: Physics
The volume of a gas was increased by factor of two. What is the change in its density?
Let Initial volume , 
=
Final Volume , 
=
Initial density = 
Final density = 
The relation between Volume of the gas and density is given below
  
From above formula We can write the following formula

Substitute 
=
,  
=
 in above
equation
    

Final density is the Half of the initial density
Now Change in density = Initial density - Final density
= 
= 
= 
=
= 
Change in density = 
Change in density is Half of the Initial density.