In a experiment to determinate the thermal conductivity of abar a new alloy, one

Question

In a experiment to determinate the thermal conductivity of abar a new alloy, one end of the bar is maintained at 0.0 oC and theother end at 100.0 oC and 20.0 oC. The bar has a cross-sectionalarea of 1.0 cm2 and a length of 15 cm. If the rate of heatconduction throunh the bar is 24 W. what is the thermalconductivity of the bar? In a experiment to determinate the thermal conductivity of abar a new alloy, one end of the bar is maintained at 0.0 oC and theother end at 100.0 oC and 20.0 oC. The bar has a cross-sectionalarea of 1.0 cm2 and a length of 15 cm. If the rate of heatconduction throunh the bar is 24 W. what is the thermalconductivity of the bar? In a experiment to determinate the thermal conductivity of abar a new alloy, one end of the bar is maintained at 0.0 oC and theother end at 100.0 oC and 20.0 oC. The bar has a cross-sectionalarea of 1.0 cm2 and a length of 15 cm. If the rate of heatconduction throunh the bar is 24 W. what is the thermalconductivity of the bar?

Explanation / Answer

thermal conductivity = H L / A T = .         = 24 * 0.15 /0.0001 * (100 - 0) =    360   W/m-K . Note:   you wrote that the bar was maintainedat   0.0    and  100.0    and   20.0.    Iassume this is a mistake and that you meant only   0.0 at one end, 100.0 at the other end.

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