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Contemporary weather balloons are usually filled with helium. Helium is lighter than air, and this allows the balloon to rise as this gas is lighter than air.
Hydrogen would also work as it has a low density, like helium. And hydrogen is a bit cheaper than helium because it can be "made" from water. But hydrogen is flammable or even explosive, and it is generally not used for that reason.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoThe balloon is usually filled with hydrogen due to lower cost, though helium can be used as a substitute
Wiki User
∙ 10y agoHelium these days, for cost reasons, but hydrogen was primarily used in the past because it's a lighter gas.
For more information, check the related link below.
Wiki User
∙ 10y agohydrogen, helium, hot air
Wiki User
∙ 11y agoHelium
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What can you say about the gas inside a balloon?
The gas inside of a balloon is less dense than the air outside of it if the balloon floats. If the balloon does not float the density of the gas inside of it is equal to or more dense than that around it.
Why are weather balloons partially infated before they're released into the atmosphere?
As you rise in elevation, the pressure around you decreases. This lower pressure would cause the balloon to expand, and burst if it was inflated to much originally. By starting it off only partly filled, it will expand to a normal size and not explode.
How you know gas is inside the balloon?
If there were nothing inside the balloon - a vacuum - the balloon would quickly collapse due to the pressure of the atmosphere outside it. A firmer structure might resist the air pressure, but not a balloon.
Does the gas inside a balloon affects its size and shape?
Increasing the temperature or pressure of the gas the volume increase.
What metric unit would you use to measure the gas inside of a birthday balloon?
PPB
Why does a partially inflated weather balloon expand as it rises?
As height is gained the outside air pressure on the balloon is reduced. This reduction allows the gas inside the balloon to expand.
What can you say about the gas inside a balloon?
The gas inside of a balloon is less dense than the air outside of it if the balloon floats. If the balloon does not float the density of the gas inside of it is equal to or more dense than that around it.
Is inside balloon solid liquid or a gas?
Inside a balloon there is gas. This gas is normally helium if you want the balloon to fly high, but hydrogen also works.
Where do birthday balloons go when they are released in the air?
With helium filled balloons, they rise upwards as the gas inside is of a lower density than the atmosphere around them. The balloon will continue to rise and the gas inside it will expand as the atmospheric pressure decreases with increasing altitude. Eventually, the gas inside the balloon will expand enough to burst the balloon and the balloon will fall back to the ground. When and where this happens depends on weather conditions, air temperature, the rubber used in the balloon, etc.
Why do the sides of the balloon expand when you blow into it?
more gas particles increases the pressure inside the balloon expanding it, since gas particles hit the inside of the balloon.
Is inside a balloon a solid?
No, the inside is a gas (air).
What is placed inside the balloon that form its shape?
The balloon is filled with a gas.
What is inside a blown-up balloon?
gas
What can you say about the gas inside the balloon?
Hydrogen
Why does the volume of a balloon increase as the balloon is heated?
Because the gas inside expands with the heat
If you push on the sides of a filled balloon how does the gas pressure inside the balloon change?
Calucus
What kind gas is used in hot air balloon?
No Gas Just hot air which is why it is called a hot air balloon. If you were wondering hot air is lighter than cold air which makes it rise so when it is trapped inside the balloon the whole thing will rise.
