0
Ordinary air can be used to fill balloons, but they will not float or lift anything. You would need to add a gas that is lighter than the nitrogen or oxygen that makes up most of air, and one that is light enough to lift the weight of the balloon.
Today, we typically use helium gas (atomic number 2) which is light, non-reacting, and non-polluting. It is only about as dense as normal air found at several miles above the Earth. Weather balloons and advertising blimps use helium.
You could also use hydrogen gas, which is plentiful and cheaper, but it is flammable or explosive when mixed with oxygen and ignited (as by a spark). Early German passenger dirigibles used hydrogen, and a famous one, the Hindenburg, was destroyed by fire when visiting the US in 1937.
The large hot-air balloons that float and race are lifted by heated air, which is less dense than the same volume of cooler air. Using flame burners, the hot-air balloons can maintain their lift until their supply of fuel is gone. Almost none have the capacity for directed flight, and move with the prevailing winds.
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
Would a balloon exploded filled with gas?
A balloon filled with hydrogen can explode.
What will happen to those balloons if you take them outside on a cold day?
When you cool a gas at a constant presure, the volume of the gas decreases. Therefore, the balloons will slightly shrink.
How or in what is helium used?
either for balloons, or whip it's.
Why does a balloons change shape when squeeze it?
Balloons can be twisted into shapes because of particles of gas can be compressed.
What is a sentence for helium?
Helium is an inert gas."They fill Helium in the balloons", father explains his child.
What gas is In balloons but not explosive?
This gas is helium.
What types of balloons are there?
there are many different types: hot air balloons, gas balloons, party balloons, weather balloons and many more complex types of balloons.
Which gas do you use in balloons?
Helium
What is the gas used for balloons?
helium
Which gas is in balloons which float?
Helium
Why are balloons called balloons?
Balloons are not called helium; they can be filled with helium because this gas is not flammable and has a very low density.
Is nitrogen a suitable gas to put in balloons?
You can feel nitrogen gas in balloons. But there is no advantage of doing so instead of air which contains about 80% (79 % is morecorrect.) and 20 % oxygen in it. Separating nitrogen is expensive and your balloon will not 'fly'. But fall down to ground. If you want it to go up in air 'lighter' gas like hydrogen have to be used. It can be produced from water, economically. So nitrogen is 'not' suitable gas to put in balloon.
Why do balloons expands when its temperature increases?
Balloons are filled with gas and gas expands when temperature increases. Gas also condenses when the temperature is lowered. This is due to Charles' law.
Would a balloon exploded filled with gas?
A balloon filled with hydrogen can explode.
What will happen to those balloons if you take them outside on a cold day?
When you cool a gas at a constant presure, the volume of the gas decreases. Therefore, the balloons will slightly shrink.
Why is helium a lifting gas for balloons?
It is a super light gas .... trust me
Which gas do you use for hot air balloons?
Hot air is used for hot air balloons.
