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21 May, 00:54

A flask containing 155cm^3 of hydrogen was collected under a pressure of 22.5kPa. What pressure would have been required in order for the volume of the gas to have been 90.0 cm^3 at constant temperature?

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  1. 21 May, 02:13
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    38.75KPa

    Explanation:

    The following were obtained from the question:

    V1 = 155cm^3

    P1 = 22.5kPa

    V2 = 90cm^3

    P2 = ?

    The new pressure can obtain by doing the following:

    P1V1 = P2V2

    22.5 x 155 = P2 x 90

    Divide both side by 90

    P2 = (22.5 x 155) / 90

    P2 = 38.75KPa
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