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Chem Help!

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Weather balloons are only partially inflated before they are released into the atmosphere. Why is that?

  • Chem Help! - ,

    Because the atmospheric pressure of the air outside the balloon goes down as the balloon rises. That means the pressure of gas inside the balloon would be much higher than the pressure outside if it could not expand and the balloon would burst. Therefore you leave room in the balloon for the gas to expand as the pressure goes down.

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