the image below is not accurate because... ...the heavier atoms are moving faster than the lighter ones…

the image below is not accurate because... ...the heavier atoms are moving faster than the lighter ones. ...you cant mix two gases this way. ...all of the atoms should be moving at the same speed. ...the atoms should be moving much slower.

Answer

Answer: the heavier atoms are moving faster than the lighter ones.

Brief Explanation: In a gas - mixture at a given temperature, lighter atoms/molecules have higher average speeds than heavier ones due to the same average kinetic energy. So it's incorrect for heavier atoms to move faster.