You have a 0.815-m-long copper rod with a rectangular cross section of dimension

Question

You have a 0.815-m-long copper rod with a rectangular cross section of dimensions 0.0461 m by 0.0715 m. You maintain the ends of the rod at 42.9 degrees C and 88.1 degrees C, but otherwise insulate the rod from its environment. Find the heat current through the rod. The thermal conductivity of copper is 385 W/(m*K).
Answer _______ W You have a 0.815-m-long copper rod with a rectangular cross section of dimensions 0.0461 m by 0.0715 m. You maintain the ends of the rod at 42.9 degrees C and 88.1 degrees C, but otherwise insulate the rod from its environment. Find the heat current through the rod. The thermal conductivity of copper is 385 W/(m*K).
Answer _______ W
Answer _______ W

Explanation / Answer

ate of heat transfer H = dQ/dt = KA(T2-T1)/L

where K = coeffficient of thermal conductivity

A = area

T2-T1 = change of temperartue

soH = dQ/dtt

H =   385* 0.0461* 0.0715 * (88.1-42.9)/(0.815

H = 70.376 Watts

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