dissipation due to heat conduction

What is the dissipation due to heat conduction? D =3D -k . grad T . q / T where q is the heat flux, k is the coefficient of heat conduction What is the physical meaning of this?

Bal=E1zs Pere

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Pere.Balazs
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Also posted to sci.chem. Do not drop individual posts to a series of different groups. You can cross-post to multiple groups. That way, once a good response is obtained you don't need further responses, and if you get a stinker you can get "quality control" from a wider audience.

David A. Smith

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dlzc

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