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the air pressure outside of the balloon decreases.
20,000ft is a safe distance for a hot air balloon because there is no oxygen at 30,000ft, you can suffer from hypoxia and eventually suffocate.it can go up for ever as long as you have enough fuel to keep it going but at a certain altitude,(like space) there is a lack of oxygen so the balloon will start to float around and the person(s) will die from lack of air
After you hit a certain altitude, the air would become so thin, it would starve the flame making the balloon rise of oxygen, the flame would go out, and the balloon would come plummeting back down to earth
128,177 feet (39,068.5m)
If one flies at high altitude the air gets thinner, that is, there is less of it. If one wants to have enough oxygen, he will need a mask.
the air pressure outside of the balloon decreases.
at altitude the balloon's external air pressure has been greatly reduced, often expanding the balloon to the bursting point.
20,000ft is a safe distance for a hot air balloon because there is no oxygen at 30,000ft, you can suffer from hypoxia and eventually suffocate.it can go up for ever as long as you have enough fuel to keep it going but at a certain altitude,(like space) there is a lack of oxygen so the balloon will start to float around and the person(s) will die from lack of air
A Hot Air balloon.
After you hit a certain altitude, the air would become so thin, it would starve the flame making the balloon rise of oxygen, the flame would go out, and the balloon would come plummeting back down to earth
makes 40% oxygen than lower altitude
128,177 feet (39,068.5m)
The ballon will most likely pop. The balloon will shrink.
If one flies at high altitude the air gets thinner, that is, there is less of it. If one wants to have enough oxygen, he will need a mask.
The density of air decreases with altitude, so the ratio of oxygen in the air stays the same, but the amount of gases in your lungs decrease.
The gas helium is less dense than the nitrogen-oxygen mix of atmospheric air. So a balloon filled to the same pressure (or even higher) will have a lower density than the air around it, which will displace it (flow under it), forcing it upward. The balloon will rise until the combined weight of the helium and the balloon are the same average weight (density) as the surrounding air. Long before it reaches that altitude, a normal balloon will begin to expand and will usually pop (at an altitude of a few hundred to a few thousand feet).Helium molecules are lighter than most air molecules in the atmosphere (mostly nitrogen and oxygen) therefore they are prone to rise while heavier molecules move downward.
Hot air rises; cold air falls.