Boyles Law equation help!?

The problem reads: The volume of a given mass of a gas is 200ml at 76cmHg. If the volume is changed to 100ml at a constant temperature, what is the pressure of the gas?

Please help and thanks for you time!!!:D

2 Answers

  • 9 years ago
    Favorite Answer

    The Boyles Law equation is pV = k where,

    P = pressure

    V = volume

    k = constant value of the pressure and volume of the system.

    Since we have two Volumes, k is the same, and only one pressure, we only need to solve for one pressure.


    p1 = 76cmHg p2 = x

    V1 = 200ml V2 = 100ml

    Just rearrange this finding p2 or your new pressure and there is your answer.

  • i-Yoda
    Lv 6
    9 years ago

    Do your own homework.

    Good luck

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