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21 February, 08:19

A sample of oxygen occupies a volume of 250mL at 114 kPa. What pressure is required to change the volume to 593 mL?

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  1. 21 February, 08:49
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    48.1 kPa

    Explanation:

    Data Given

    initial volume V1 of oxygen gas = 250 mL

    initial pressure P1 of oxygen gas = 114 kPa

    final volume V2 of oxygen gas = 593 mL

    final pressure P2 oxygen gas = ?

    Solution:

    This problem will be solved by using Boyle's law equation at constant Temperature.

    The formula used

    P1V1 = P2V2

    As we have to find out Volume, so rearrange the above equation

    P2 = P1V1 / V2

    Put value from the data given

    P2 = 114 kPa x 250 mL / 593 mL

    P2 = 48.1 kPa

    So the final pressure required = 48.1 kPa
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