Question

How can you show incompressible nature of gas molecules?

Answer 1

In thermodynamics, with respect to pressure change the relative volume of solid or liquid change is called compressibility .

i) In solid the molecules are very tightly packed. There are no space between the molecules hence it is difficult to compress

ii) In liquid the molecules are somewhat loosely packed compared to solid hence these molecules are also difficult to compress.

iii) But in case of gas the molecules are very loosely packed. It is very easy to compress the gas molecules. But in theoretical and practical purposes gases are consider as incompressible in nature because they are moving at very at a very slow speed, which is 220miles/ hour