Which mechanism expect to dominate thermal conductivity


Calculate the steady state heat transfer rate (in J/mm2•s) through a rod of copper 10 mm thick if the temperature gradient is 50 oC. The density of Cu is 8.9 g/cm3 and the thermal conductivity is 398 J/(s•mK) b) How is heat conducted in solids? c) Which mechanism would you expect to dominate thermal conductivity in Cu? Al2O3?

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Mechanical Engineering: Which mechanism expect to dominate thermal conductivity
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