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Ideal gas

  1. Oct 5, 2014 #1
    1. The problem statement, all variables and given/known data
    http://puu.sh/c0rhe/fb6b48f890.png [Broken]

    2. Relevant equations
    PV=constant

    3. The attempt at a solution

    I have no idea how to apply the above equation. Please help.
     
    Last edited by a moderator: May 7, 2017
  2. jcsd
  3. Oct 5, 2014 #2

    ehild

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    Gold Member

    The above equation (PV=const) can not be applied. For what process is it valid? What process is the problem about?

    ehild
     
  4. Oct 6, 2014 #3
    It is a isobaric process.
     
  5. Oct 6, 2014 #4

    ehild

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    Remember the ideal gas law. What equation holds between V and T in an isobaric process?
     
  6. Oct 6, 2014 #5
    V/T=k

    but how is this supposed help me answer the question?
    Pls provide some help.
    I am having my exams tmrw
     
  7. Oct 6, 2014 #6

    NascentOxygen

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    Staff: Mentor

    Perhaps you could do it in a couple of steps?

    The graph B shows the V-T plot for a mass m at a constant pressure P. What would be the V-T plot for one quarter of that mass, m/4, at the same constant pressure P?

    Finally, what would now be the plot for m/4 at half the pressure, viz., P/2?
     
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