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Finding the heat transferred in an ininitesimal quasistatic process

  1. Jul 11, 2008 #1
    For an ideal gas PV=nRT where n is the number of moles show that the heat transferred can be written as:

    dQ = \frac{C_V}{nR}VdP + \frac{C_P}{nR}PdV

    Really not sure where to start with this...

    I have used

    dQ = dU + PdV

    But it hasn't really lead anywhere.
  2. jcsd
  3. Jul 11, 2008 #2

    Andrew Mason

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    Start with:

    dQ = mCdT where C is the heat capacity of the gas. (The heat capacity, of course, depends on whether the gas does work as the heat flows into the gas, so it does not have a fixed value).

    Using PV = nRT, what is dT? That should get you going in the right direction.

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