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30 March, 10:48

A piston contains 5.00 L of gas at a pressure of 101 kPa. The piston is compressed until the gas occupies 2.00 L of space. What is the new pressure of gas inside the piston?

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  1. 30 March, 10:53
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    Answer: 252.5 kPa

    Explanation:

    Given that:

    initial volume of gas V1 = 5.00 L

    initial pressure of gas P1 = 101 kPa.

    new Volume V2 = 2.00 L

    new pressure P2 = ?

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

    P1V1 = P2V2

    101 kPa x 5.0L = P2 x 2.00L

    505 = P2 x 2.00L

    P2 = 505/2.00

    P2 = 252.5 kPa

    Thus, the new pressure of gas inside the piston is 252.5 kPa
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