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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

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    SDN Members don't see this ad. (About Ads)
    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...
  2. folktale

    folktale

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    given amount of mass can vary, but the heat capacity is a constant for a given material.
  3. bajoneswadup

    bajoneswadup

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    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
  4. milski

    milski 1K member

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    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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