What is compressibility ?

The dimensional formula for compressibility will be

The compressibility factor of a gas is defined as Z =(PV)/Nrt . The compressibility factor of an ideal gas is :

What is bulk modulus of elasticity . To which state of matter is applied. Explain compressibility with its units.

What is meant by the compressibility of a substance ?

The compressibility factor of an ideal gas is :

The compressibility factor for H_2 and He is usally :

The compressibility of a gas is less than unity at S.T.P. Therefore :

At low pressure, van der Waals' equation is reduced to [(P) + (a)/(V^2)]V = RT . The compressibility factor can be given as :

Fluid is compressible / non compressible.