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4 June, 16:30

A gas with constant temperature has a pressure of 123 kPa and a volume of 123.13 L. A pressure change caused the volume to decrease to 28.15 L. What is the new pressure?

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  1. 4 June, 17:07
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    T = const.

    P1 = 123 kPa

    V1 = 123.13 L

    V2 = 28.15 L

    P2 = ?

    This is an example of Boyle's law which describes how the pressure of a gas tends to increase as the volume of the container decreases, meaning that P*V=const. For comparing the same substance under two different sets of conditions, the law can be expressed as P1*V1=P2*V2

    P2=P1V1/V2

    P2=123kPa*123.13L/28.15 L

    P2=538.01 kPa
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