Helium-Filled balloon becomes smaller than oxygen filled balloon why!!!?

Question

Imagine that both of these balloons are tighly sealed. By the next day, the helium-filled balloon has become much smaller than the oxygen-filled balloon. If the temperature and pressuew in the room did not change, Why do you think this happened??? PLEASE HELP ME. I think that you need to use kinetic molecular theory I do remember that helium atoms are smaller than oxygen molecules if this helps,

Answer 1

oxygen atoms are larger than helium atoms.
The helium leaches out of the balloon quicker than the oxygen.

Answer 2

The helium molecule is much smaller than the oxygen molecule and can more easily leak out of the balloon; it may even permeate the balloon rubber membrane.

Answer 3

when the balloon's surface is stretched (and if a balloon is inflated, its surface surely is stretched!), pores' diameter grow on it. You did mention that helium molecules are smaller than oxygen's, that's why helium escapes through the pores of the stretched surface of the balloon, faster than oxygen does.

Answer 4

the pressure and temp might not have changed but it still could have an effect on the hellium filled balloon.
(if you put a balloon in the sun you cant see it shrinking but if you leave it there long enough you will be able to tell.)

Answer 5

well, I think you answered your own question there. helium is lighter than air hence it floats, so if it's smaller and lighter it will escape from the balloon at a faster rate.

Answer 6

because the molacules are smaller than oxyagin adams so thay squease in bitween balune molacules making it deflate faster

Answer 7

helium escapes through the ballon

Answer 8

I Guess the helieum defuses or , something of that sort.

sorry if i couldnt help mate.