Question

A gas fills completely the vessel in which it is kept. Why?

Answer 1

Answer:

due to less force of attraction

Explanation:

A gas completely fills the vessel in which it is kept because there is negligible force of attraction between the particles of gas. Thus, the gas particles move freely in all directions. ... These collisions of the gas particles with the walls of the container exert pressure on the walls of the container.

Answer 2

Explanation:

Because of the Molecular Structure of gas.

The force of attraction is the least among the three types of Matter therefore the Molecules take all the space of the vessel in which they are kept/ stored.

Hopw It helps.... :)