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Adiabatical Compression Question

  1. Apr 15, 2015 #1
    1. The problem statement, all variables and given/known data
    Air at 20C is compressed adiabetically from 1 bar to 10 bar. What will its temperature be?

    2. Relevant equations
    pV = nRT,
    P1P2=T1T2
    P1Vλ1=P2V2λ


    3. The attempt at a solution 11139511_10152706455226906_625802356_n.jpg
    In picture...
     
  2. jcsd
  3. Apr 15, 2015 #2

    TSny

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    Is PV = nRT valid for the Celsius temperature scale?
     
  4. Apr 15, 2015 #3
    no, should be kelvin 293 right?
     
  5. Apr 15, 2015 #4

    TSny

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    Yes, you need to use an absolute temperature scale such as Kelvin.
     
  6. Apr 15, 2015 #5
    Are you familiar with the first law of thermodynamics? Are you supposed to assume that the compression takes place reversibly?

    Chet
     
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