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Explain why helium-filled Mylar-foil balloons can float freely for several weeks but latex balloons for less than 24-hours?
Wiki User
∙ 10y ago
Helium is not only very light, it is also monatomic, it's particles are all made up of a single atom. Air molecules, oxygen, and nitrogen mainly are larger and hevier and diffuse through much more slowly.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoLast longer than what? Helium balloons are not especially long-lived because diffusion is related to particle mass (lighter particles diffuse faster), and helium is the second-lightest possible gas.
Helium balloons do last longer than hydrogen balloons, because hydrogen is the lightest possible gas.
Wiki User
∙ 12y agoCO2 (Carbon Dioxide) is a larger molecule than H2 (Hydrogen) and because of this leaks out slower.
Or at least, that's what should happen in theory. But actual experimental evidence shows the opposite.
Wiki User
∙ 15y agoAlthough Hydrogen is one on the element scale, Helium is a preferred gas to use in balloons because it is a safer (not flammable) gas than hydrogen.
Wiki User
∙ 13y agoMylar balloons are less porous to helium than are latex balloons.
Wiki User
∙ 10y agoMylar-foil balloons are less porous to helium than latex balloons. Basically, it takes helium longer to seep through the Mylar-foil.
Wiki User
∙ 10y agomylar balloons vs latex balloons
Wiki User
∙ 12y agoThey are less porous
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In terms of electrical explain why the balloons repelled each other?
It's due to static electricity build up. The balloons have become charged with electricity and it is the same charge on both balloons (either positive or negative). Opposite charges attract, identical charges repel each other.
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Not much. While it's true that meteorologists do use balloons to send up weather probes, they tend to use gas balloons instead. It's simpler, cheaper and works better in their conditions.
In terms of electrical charges explain why the balloons repelled each other?
Like (same) charges repel.
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One method of raising a sunken ship to the surface is to inflate large bags or balloons inside its hull explain why this procedure could work?
Because it is heavy Duty
In terms of electrical explain why the balloons repelled each other?
It's due to static electricity build up. The balloons have become charged with electricity and it is the same charge on both balloons (either positive or negative). Opposite charges attract, identical charges repel each other.
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How many times may the soul go through the cycle of birth and rebirth in hindusim?
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Why is helium used to fill balloons?
It is a matter of mass, weight, and density. A balloon filled with normal air will not rise. Air will rise in water, because it is less dense (bubbles). Helium on the other hand is lighter than air, so it too will rise when 'submerged' in it. The actual process is that the heavier air surrounding a helium-filled balloon will "displace it" and force it upward. Hydrogen is also less dense than air, but it is flammable. Helium is not flammable, has no smell or taste, and is not poisonous. So because it is the second lightest element, and the second most plentiful in the world (found in natural gas), it's a natural fit. ---- However, consider that while it may seem fun to have balloons that go up on a string, if they escape, then eventually they pop and it is likely that the burst rubber will fall into the sea. In the sea they are mistaken for food by turtles and escaped balloons cause much harm. Also being unreactive as an element and very light, most of the helium on earth has gone to the top of the atmosphere and escaped into space. The only helium we have is found as a byproduct of radioactive decay within the Earth. The element has very important uses in industry and science and wasting it on balloons is not a sensible thing to do. There is only a finite amount of helium available to us at any given time.
