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A sample of helium gas has a pressure of 860 mm Hg at a temperature of 225 K. At what pressure (mm Hg) will the helium sample reach a temperature of 675 K.

  • chemistry -

    At constant volume, P/T = constant.
    P1/T1 = 860/225 = P2/T2 = P2/675
    P2 = 2580 mm Hg will be the final pressure.

    It must triple because the absolute temperature triples.

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