Question

Gases fill completely the vessel in which they are kept. Give reasons

Answer 1

Hey dear !!

So here's your answer :-

A gas neither has a fixed shape nor a fixed volume.
As the particles of the gas are free to move anywhere, it assumes the shape and volume of the vessel in which it is kept.

For example : A balloon filled with helium and then transferred into jar.

We will observe the same amount of helium will completely fill the jar.✔

Hope this helps you dear ✌

Answer 2

Because gas occupies space.