What would happen to the size of an hydrogen filled balloon as it increased in altitude?

Question

help asap would be greatly appreciated tks.

Answer 1

The volume of the balloon will be inversely proportional to the pressure of the air around it (see Boyle's Law). So as the air pressure reduces as with altitude, the volume of balloon will expand.

If the balloon is strong enough to get to space, where the pressure is close to zero, its volume would be *close* to infinitely big. That's a pretty big balloon! Of course, in practice, it will burst.

The atmosphere extends up for about 200 km...

Answer 2

It expands as there is a fixed amount of gas inside and the pressure outside is decreasing.

Probably it bursts at some point.

However, there is another mechanism, the helium is leaking through the rubber and decreasing the pressure, but I think that is a slower process. So if the balloon doesn't burst, it will loose it's Helium and start to go down in altitude and eventually fall out of the sky.

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Answer 3

I'm no expert, but because the air pressure up there is very low, it would probably expand and then of course pop. (Remember that a hydrogen balloon would not actually reach that hight).

Answer 4

The higher it goes the less air so it will only go so far and no furthur... Its like a Helicoptor, It can only fly so high and no more because of the lack of air..

Ignore the other answers except to say that the Baloon could expand and burst but its unlikely.. I know im right..

Answer 5

As the balloon increased in altitude it would expand because the air pressure around it decreases.  Eventually when the pressure in the balloon is far enough above the air pressure outside the balloon it would pop.