Question

Which of the following statements of kinetic molecular theory explains the compressibility of gases as compared to liquids and solids?

Gases are made of molecules which are relatively far apart.
The molecules are in motion at high speeds.
The molecular collisions are perfectly elastic.
Increase in temperature increases the kinetic energy of the molecules.

Answer 1

Gases are made of molecules whicb are relatively far apart which is different compare to when you compress liquid and solid

Answer 2

Answer is: Gases are made of molecules which are relatively far apart.

The densities of gases are much smaller than those of corresponding liquids and solids, so it is easier to compress gases.

For example, liquids has larger densities than gases, because atoms or molecules in liquids are much more closer to each other than in the gases, that is because molecules in liquids have stronger intermolecular forces and therefore stronger interactions.