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Finding Pressure when given change in temperature

  1. Apr 19, 2009 #1
    I have this problem: A 1.8L flask is filled with methane,CH4, at 863mmHg and 28C. if the flask is then heated to 164C what is the new pressure in atm?(assume ideal gas behaviour)

    I know i need to use on of the gas laws but none of them seem to fit the picture.
  2. jcsd
  3. Apr 19, 2009 #2
    Ive done some working
    am i right in using P1V1/N1T1=P2V2/N2T2?

    therefore P1/T1 = P2/T2
    (using atm and K) 1.135526313/301 = P2/437
    P2 = 1.6485 atm
  4. Apr 20, 2009 #3


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    Staff: Mentor

    Way too many significant digits, but otherwise OK.
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