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1 April, 07:43

A balloon filled with helium gas at 1.00 atm occupies 12.9 L. What volume would the balloon occupy in the upper atmosphere, at a pressure of 0.19 atm and a constant temperature? Enter your answer in the box provided.

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  1. 1 April, 07:53
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    67,9 L

    Explanation:

    Boyle's Law indicates that the pressure of a fixed amount of gas at a constant temperature is inversely proportional to the volume of a gas, for a constant amount of gas we can write:

    P1V1=P2V2

    For the problem:

    P1 = 1 atm, V1 = 12,9 L

    P2=0,19 atm, V2=?

    Therefore:

    V2=P1V1/P2 ... V2=1 atm*12,9L/0,19 atm = 67,9 L

    The balloon would occupy a volume of 67,9 L in the upper atmosphere.
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