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15 May, 07:38

The volume of a gas is increased from 445mL to 515ml. If the initial pressure was 120kPa, what is the final pressure of the gas?

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  1. 15 May, 09:33
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    Answer: 103.7 kPa

    Explanation:

    Given that:

    initial volume of gas V1 = 445ml

    initial pressure of gas P1 = 120 kPa.

    new Volume V2 = 515ml

    new pressure P2 = ?

    Since, only pressure and volume are involved, apply the formula for Boyle's law

    P1V1 = P2V2

    120 kPa x 445ml = P2 x 515 kPa

    53400 = P2 x 515 kPa

    P2 = 53400/515

    P2 = 103.7 kPa

    Thus, the final pressure of the gas is 103.7 kPa
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