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Internal heat of ideal gass

  1. Jun 26, 2016 #1

    diredragon

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    Gold Member

    1. The problem statement, all variables and given/known data
    An ideal gass is at constant volume risen to a new pressure level of ##P_f##. Find te expression for the total heat brought to the system.
    2. Relevant equations
    3. The attempt at a solution

    So ##PV=nRT## and ##E=Q## ##Q=C_v(T_f-T_i)## so i just have to find ##(P_f-P_i)V=nR(Tf-Ti)## with the last term being what i need...?
     
  2. jcsd
  3. Jun 26, 2016 #2
    The equations you have written can be used, provided you write ##Q=nC_v(T_f-T_i)##, where Cv is the molar heat capacity and n is the number of moles.
     
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