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Intensive/Extensive-Heat Capacity/Specific Heat

Discussion in 'MCAT Study Question Q&A' started by TXKnight, Apr 20, 2012.

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  1. TXKnight

    TXKnight Better Known as TXK 5+ Year Member

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    Oct 21, 2010
    Aeternal Vernis
    So Im trying to get this straight:

    Specific heat is the E needed to raise a given amount of mass by one degree. It is an extensive property.

    Heat capacity is the E needed to raise the temp of something of KNOWN mass by one degree. It is an Intensive property.

    In a way, is it correct to thing of Heat capacity as the "standard" (like density) to measure against?........and specific heat as a particular measurement of a given substance (as specific gravity)?

    Correct???? I am hearing conflicting info...
     
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  3. folktale

    folktale

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    Jun 30, 2010
    California
    given amount of mass can vary, but the heat capacity is a constant for a given material.
     
  4. bajoneswadup

    bajoneswadup

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    Mar 26, 2011
    naw you have the 2 switched. intensive is like density- doesnt matter how much u have. extensive does, so like mass. specific heat is def. intensive... water is 4.18 no matter how much u have
     
  5. milski

    milski 1K member 5+ Year Member

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    Dec 30, 2009
    Where the rain grows
    No, the opposite:

    Specific heat capacity is the energy needed per unit of mass, the unit is J/kg.
    Heat capacity is the energy for a certain body/amount of mass, unit is J.
     

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