# Compressibility | Compressible Fluids | Incompressible Fluids

Saturday, October 23, 2010 8:12**Compressibility** may be defined as the ratio of change in volume of the fluid to the original volume . It can be mathematically expressed as

(change in volume/original volume)*100.

It is often represented in percentage that is why we are multiplying it with 100.

**Compressible Fluids:**

The fluids in which there is change in volume, density and specific weight occurs due to application of pressure are called as compressible fluids.

**Incompressible Fluids:**

The fluids in which there is no change in volume, density and specific weight occurs due to change in pressure are known as incompressible fluids.