Question

a gas fills completely the vessel in which it is kept​

Answer 1

Hey Mate Here Is Ur Answer.⚘

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 gasparticles 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.

hope it helps u....✔

mark as brainliest...✌⚘

Answer 2

Because gas occupies space.