Two Metal Rods, One Silver and the Other Copper, Are

Two metal rods, one silver and the other copper, are both attached to a steam chamber, with a temperature of 100°C, at one end, and an ice water bath, with a temperature of 0°C, at the other. The rods are 5.0 cm long and have a square cross-section, 2.0 cm on a side. How much heat flows through the two rods in 60 s? The thermal conductivity of silver is 417 W/(m·K) , and that of copper is 395 W/(m·K) . No heat is exchanged between the rods and the surroundings, except at the ends.

A) 20 kJ
B) 39 kJ
C) 47 kJ
D) 49 kJ
E) 11 kJ

Correct Answer:

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