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Ideal gas laws question Help

  1. Oct 22, 2013 #1
    Ideal gas laws question.. Help!!

    1. The problem statement, all variables and given/known data

    Volume of 150cm^3 of an ideal gas has an initial temp. Of 20 degrees celcius and an initial pressure of 1 atm. What is the final pressure if the volume is reduced to 100cm^3 and the temp is raised to 40 degrees celcius.

    2. Relevant equations

    Pi x Vi / Ti = Pf x Vf / Tf

    3. The attempt at a solution

    1 atm x 150 cm^3 / 293 K = P x 100cm^3 / 313 K.
    I keep getting 1.6, this answer is incorrect. I'm pretty sure my units are mixed up but I'm not sure what I need to fix. Any help would be great!! Thanks
     
  2. jcsd
  3. Oct 22, 2013 #2
    You really don't need to fix any units in this particular calculation. It looks like your answer is correct, unless you are required to give the answer as 1.6 atm.

    Chet
     
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