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Thermodynamics -- mono and diatomic gases

  1. Nov 3, 2016 #1
    1. The problem statement, all variables and given/known data
    upload_2016-11-3_18-10-29.png
    The 4 processes involve one mole of either mono- or di-atomic gas with the same amount of heat (absorbed or discharged)

    •Which belong to the mono and which to the diatomic gas?

    2. Relevant equations
    i don't know which equations I should use and how start solving it..
    I started thinking by taking into consideration the degrees of freedom of each but it didn't work
     
  2. jcsd
  3. Nov 3, 2016 #2
    What is the molar heat capacity at constant volume for a monoatomic gas? What is the molar heat capactiy at constant volume for a diatomic gas?
     
  4. Nov 4, 2016 #3
    (molar heat capacity at constant volume=f/2 R where f is then number of degrees of freedom) I think it should be 3/2R for monoatomic and 7/2Rfor diatomic and delta T is inversly proportional to heat capacity. Similarly for heat capacity at constant pressure (Cp=R+Cv) so diatomic will get a lower temprature than monoatomic ones so 1,3 monoatomic and 2,4 diatomic
    Correct???
     
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