Question

A copper bar of thermal conductivity 401 W/(m · K) has one end at 94° C and the other end at…

A copper bar of thermal conductivity 401 W/(m · K) has one end at 94° C and the other end at 29° C. The length of the bar is 0.10 m and the cross sectional area is 1.0x 10^-6 m2.
(a) What is the rate of heat conduction along the bar?
in W

(b) What is the temperature gradient in the bar?
in K/m

(c) If two such bars were placed in series (end to end) between the same temperature baths, what would be?
in W

(d) If two such bars were placed in parallel (side by side) with the ends in the same temperature baths, what would be?
in W

(e) In the series case, what is the temperature at the junction where the bars meet?
in ° C

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