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27 June, 20:22

The unheated gas in the above system has a volume of 20.0 L at a temperature of 25.0 °C and a pressure of 1.00 atm. The gas is heated to a temperature of 100.0 °C while the volume remains constant. What is the pressure of the heated gas?

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  1. 27 June, 20:42
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    The pressure of the heated gas is 1.25atm

    Explanation:

    Using pressure law equation;

    P1/T1 = P2/T2

    P2 = P1T2 / T1

    P1 = 1atm

    T2 = 100 C = 100 + 273K = 373K

    T1 = 25.0 C = 25 + 273K = 298K

    Solving for P2 we equate the values and we get;

    P2 = P1T2 / T1

    P2 = 1 * 373 / 298

    P2 = 1.25 atm.

    The pressure of the heated gas is 1.25 atm.
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