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12 October, 04:52

A 2.0 L sample of hydrogen expanded to a new volume of 5.5L whole its pressure decreased to a 0.5 atm what was the original pressure of the example

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  1. 12 October, 08:06
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    Answer: 1.375 atm

    Explanation:

    Given that,

    Original volume V1 = 2.0 L

    original pressure P1 = ?

    New volume V2 = 5.5L

    New pressure P2 = 0.5 atm

    Since pressure and volume are involved while temperature is constant, apply Boyle's law

    P1V1 = P2V2

    P1 x 2.0 L = 0.5 atm x 5.5L

    P1 x 2.0 L = 2.75 atmL

    P1 = 2.75 atmL / 2.0 L

    P1 = 1.375 atm

    Thus, the original pressure of the hydrogen gas is 1.375 atm
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