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Homework Help: Trying to work out isothermal heat transfer

  1. May 13, 2008 #1
    1. The problem statement, all variables and given/known data
    A gas mass 0.115kg undergoes an increase in volume from 0.25m cubed to 0.56m cubed. initial temp 32 degrees c and initial pressure 1.2bar. work out heat transfer??


    2. Relevant equations
    W=P1V1 ln(V2/V1)
    W=mRT ln(V2/V1)
    P1V1/T1=P2V2/T2
    Q=U2-U1+W
    PV=mRT


    3. The attempt at a solution
    loads but non worked
     
  2. jcsd
  3. May 13, 2008 #2

    dx

    User Avatar
    Homework Helper
    Gold Member

    It doesnt matter if you didnt get the answer. Still show us how you tried it.
     
  4. May 16, 2008 #3
    its ok i worked it out now
     
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