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16 January, 09:42

When a 375 mL sample of nitrogen is kept at constant temperature, it has a pressure of 1.2 atmospheres. What pressure does it exert when compressed to 125 mL

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Answers (2)
  1. 16 January, 09:49
    0
    3.6 atm.

    Explanation:

    Given:

    V1 = 375 ml

    P1 = 1.2 atm

    V2 = 125 ml

    Using Boyle's law,

    P1 * V1 = P2 * V2

    P2 = (1.2 * 375) / 125

    = 3.6 atm.
  2. 16 January, 10:11
    0
    It exerts a pressure of 3.6 atm

    Explanation:

    This is a gas law problem. We are looking at volume and pressure with temperature being kept constant, thus, the gas law to use is Boyle's law. It states that at a given constant temperature, the volume of a given mass of gas is inversely proportional to the pressure of the gas.

    Mathematically; P1V1 = P2V2

    Let's identify the parameters according to the question.

    P1 = 1.2 atm

    V1 = 375mL

    P2 = ?

    v2 = 125mL

    We arrange the equation to make room for P2 and this can be written as:

    P2 = P1V1/V2

    P2 = (1.2 * 375) / 125

    P2 = 3.6 atm
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