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Gas law

  1. Nov 4, 2011 #1
    1. The problem statement, all variables and given/known data

    what is the type of law that applies for this change?

    2. Relevant equations
    Isobaric,Isochoric ,Isothermal


    3. The attempt at a solution
    the parameters which stays constant during the change for isobaric is pressure and its a first law of thermodynamic.for isochoric is volume and again its a first law of thermodynamic,and for isothermal temperature remains constant and its a adiabatic law,but what expression during these changes stays constant?what would be different in term of parameter v expression .
     
  2. jcsd
  3. Nov 5, 2011 #2

    Simon Bridge

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    For what change?

    For all of them? Total energy?
     
  4. Nov 5, 2011 #3
    type of law applies to :isobaric,isochoric,isothermal ?
    what parameter stays constant during isobaric,isochoric,isothermal?
    what Expressions stays constant during isobaric,isochoric,isothermal?
     
  5. Nov 5, 2011 #4

    Simon Bridge

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    Not sure what "type of law" means here - I'm guessing it would be an answer like "Boyle's Law" etc.

    Parameter of each - you have it right: to check, just google the terms.
    "iso" is like "isolate"
    thermal = temperature
    baric = pressure
    choric = volume (not obvious but there's only one left)

    note: "adiabatic" is another process where the internal energy is unchanged

    expressions to choose from would be those for:
    total energy
    internal energy
    entropy
    work
    ... that kind of thing

    so for isothermal:
    1. Boyle's Law
    2. Constant temperature
    3. PV=const, W=0 (const)
     
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