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What is the different between hot air balloons and hydrogen gas balloons?
Wiki User
∙ 9y ago
Hot air balloons are filled with heated air, which expands and has less density than the surrounding air, so that the ballon floats upward -- until it cools back down. Hot air balloons usually carry a stove, to keep heating the air (which rises into the balloon, displacing the cooler air and pushing it out of the ballon -- this is an example of convection).
Hydrogen balloons are filled with hydrogen gas, which is much less dense than air, so that it rises -- unless the hydrogen leaks out. Hydrogen is not only difficult to keep from leaking out, but also quite flammable and can explode if there is a spark nearby.
Also:
Helium balloons work similarly to hydrogen balloons, except that helium is not flammable, it is slightly denser than hydrogen, and it is rare and hard to find on Earth. The sun is composed primarily of hydrogen and helium, and the fusion process that makes it radiate comes from transforming hydrogen into helium, with a large release of energy.
Wiki User
∙ 9y ago
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Why do hydrogen balloons float in air?
Because it is very light
Why do balloons come closer when air is blown between them?
The wind between the balloons creates a lower pressure in the air, so the air around it pushes the balloons together.
What is added to balloons and hot air balloons?
Balloons can be filled with air (don't float), or with hydrogen or helium (float because the gas is less dense). Hot air balloons use burners to heat the air so that it becomes slightly less dense than the cooler air around it, providing some lift.
Why is helium used in hot-air balloons when hydrogen is the lighter gas?
heliums ligther
Why don't air balloons use hydrogen gas?
Because hydrogen is EXTREMELY flammable and can burn from a wide range of air concentrations. It is more flammable than gasoline.
Why was hydrogen used for air balloons?
because it helps it fly in air
Why do hot air balloons use hydrogen?
'Hot air' balloons don't use hydrogen. They use hot air. Balloons that use hydrogen are not referred to as 'hot air' balloons. The only balloons that can accurately be referred to as 'hot air' balloons are the members of the balloon population that derive their lift/buoyancy from the presence of hot air. Of course, if a balloon used no hot air, then it could freely be referred to as a 'hydrogen' balloon, a 'helium' balloon, a 'water' balloon, etc., depending in congruent harmony with the nature of whatever substance had been chosen with which to inflate it it in order to maintain its fulsome shape.
Why is hydrogen used to inflate hot air balloons?
Hydrogen is not used to inflate hot air balloons. Just regular air is used which is then heated to make the balloon more buoyant as hot air weighs less than cold air. Hence the name hot air balloons.
Which gas is used to fill the balloons?
Hydrogen, until the Hindenburg,then everyone realized that "Hey, Hydrogen isn't that safe to use!"Hot air balloons, you mean?? Just air that is hot.Actual hand balloons and such? Helium or again, just air. Helium floats better because it is lighter than the surrounding air around it. Helium and air are still used in both.
Which kind of gas are in balloons?
hydrogen, helium, hot air
Why do hydrogen balloons float in air?
Because it is very light
Why do balloons come closer when air is blown between them?
The wind between the balloons creates a lower pressure in the air, so the air around it pushes the balloons together.
How do you know hydrogen gas is lighter than air?
Balloons filled with it float in air
Is helium only used in balloons and air ships?
Helium is the most used gas for balloons; sometimes hot air and rarely hydrogen.
Why is hot air better than helium in hot air balloons?
Hot air balloons use hot air. They have a burner to heat the air. Hydrogen balloons were too dangerous because hydrogen is highly flammable, even static electricity could cause an explosion. Helium is safer because helium is not flammable.
What chemicals do balloons contain?
helium or oxygen depending on what you put in them
What is a very light gas found in some balloons?
Helium is used in blimps and balloons. It is the second lightest element to hydrogen, which is not used because it is highly flammable.
