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Thread: I have a question about insulation and density.

  1. #1 I have a question about insulation and density. 
    Forum Freshman
    Join Date
    Jun 2006
    Does density affect how much insulation there is? My teacher said that it didn't, but isn't insulation how much heat is kept within an object? So wouldn't something with particles really close and DENSE have high insulation? Thanks.

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  3. #2  
    Universal Mind John Galt's Avatar
    Join Date
    Jul 2005
    The heat capacity of a body is defined by its specific heat, the amount of heat input required to raise its temperature by a given amount. This is, as your teacher says, somewhat independent of density.

    The composition of the material is more important than the density. For example, water has a specific heat several times greater than rock, yet its density is around 1/2 or 1/3 that of rock.

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