For small balloons like individuals often have for recreational use, hot air is much easier to control than either hydrogen or helium.
For the occasional blimp, or long distance balloon trip, Helium, while somewhat heavier than Hydrogen, has proven to be far safer.
The Hindenburg has proven the inherent dangers of using Hydrogen Gas in blimps. While, in theory, pure hydrogen is not explosive without the presence of oxygen, any rupture in the thin material separating hydrogen from the air atmosphere can prove to be deadly.
Hydrogen is used to inflate hot air balloons because it is lighter than air, providing the lift needed to make the balloon float. It is a cost-effective and readily available gas that allows the balloon to be airborne for longer durations.
because it helps it fly in air
Hydrogen gas was used in air balloons because it is much less dense than air and therefore rises, taking the balloon with it. it is unfortunately also very explosive so not used often anymore.
hydrogen
Air - a mixture of nitrogen, oxygen, carbon dioxide and other gases. When heated, air becomes less dense and so it will float in cooler (= more dense) air, giving the balloon its lift.Airships and blimps are different to hot air balloons in that they gain lift from an envelope (the balloon) filled with a gas that is lighter than air. In the past, this was hydrogen but use of this gas was stopped due to its extremely flammable nature and helium is now used instead.Used gasses in balloons: helium, hot air, hydrogen.
Hydrogen is used to inflate hot air balloons because it is lighter than air, providing the lift needed to make the balloon float. It is a cost-effective and readily available gas that allows the balloon to be airborne for longer durations.
because it helps it fly in air
Helium is the most used gas for balloons; sometimes hot air and rarely hydrogen.
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.
Helium (Hydrogen could also be used but this is flamable). Not some balloons are also kept aloft using hot air.
Hot air balloons typically use helium, not hydrogen, because helium is a safer and more stable gas than hydrogen. Helium is non-flammable, while hydrogen is highly flammable, making it a more risky option for use in hot air balloons.
Helium is a very light gas used in some balloons because it is less dense than air, allowing the balloon to float.
Helium is a gas used to inflate lighter than air balloons.
Hydrogen gas was used in air balloons because it is much less dense than air and therefore rises, taking the balloon with it. it is unfortunately also very explosive so not used often anymore.
Helium - it's less reactive.
Helium is used instead of hydrogen in balloons because it is non-flammable, while hydrogen is highly flammable. This makes helium a safer option for filling balloons to prevent any potential fire hazards. Additionally, helium is also lighter than air, allowing balloons to float easily.
Helium is used in balloons instead of hydrogen because it is non-flammable. Hydrogen is flammable and can be dangerous, while helium is inert and poses less of a fire risk. Additionally, helium is less dense than air, providing better lift for balloons.