easily compressed and low density is due to…
Mostly empty space, mass of the gas particles are negligible compared to the volume occupied by the gas.
completely fill the container
Gases are in constant random, straight line motion. They move until they collide with the walls of the container
Different gases are completely miscible
Collisions between particles are elastic, and no energy is lost
different gases are miscible
Particles behave as if there is no attraction between them