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Thread: Why things have X boiling point.

  1. #1 Why things have X boiling point. 
    Forum Freshman
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    Hmm, I'm having a hard time explaining why certain elements have high/low boiling points.

    Could anyone explain to me what are the factors, and then put that into a scenario?

    ALSO, what determines thermal conductance? Thanks


    Reinforced Carbon/Carbon <3
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  3. #2  
    Forum Ph.D.
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    i think it might have something to do with how well molecules hang together.
    molecules that hang together poorly has a lower boiling point than molecules that hang together strongly.


    when you have eliminated the impossible, whatever remains, however improbable, must be the truth
    A.C Doyle
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  4. #3  
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    http://en.wikipedia.org/wiki/Boiling_point
    In terms of intermolecular interactions, the boiling point represents the point at which the liquid molecules possess enough thermal energy to overcome the various intermolecular attractions binding the molecules into the liquid (eg. dipole-dipole attraction, instantaneous-dipole induced-dipole attractions, and hydrogen bonds). Therefore the boiling point is also an indicator of the strength of these attractive forces.
    http://en.wikipedia.org/wiki/Thermal_conductivity
    In metals the thermal conductivity is related to freely moving valence electrons. In other materials it is phonons.
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