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Why do balloons go flat?

Updated: 8/10/2023
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Wiki User

11y ago

Best Answer

Because of the intermolecular space, air molecules will slowly bind to the rubber molecules and eventually will find there way out. This will go pretty fast with a balloon because of the thin wall. But it also happens to your car tire, but more slowly.

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11y ago
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16y ago

The ballon falls down because the air presure gets stronger witch causes the ballon to srink so it falls.

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15y ago

THERE ARE TINY HOLES IN THE BALLOON CALLED SEMI- PERMIABLE WHICH MEANS AIR CAN PASS THROUGH OR IF REFFERING TO CELLS, PARTICLES CAN PASS THROUGH

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12y ago

Because a balloon's material is slightly porous, therefore helium seeps out over time and eventually go flat. This is why the balloon seems slightly deflated after a while.

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10y ago

Some of the air will seep through the skin of the balloon.

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12y ago

because of diffusion i think.theres more air outside and so the air from the ballon travels outside.

hope this helped

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