Two Metal Rods,one Silver and the Other Gold,are Attached to Each

Multiple Choice

Two metal rods,one silver and the other gold,are attached to each other end-to-end.The free end of the silver rod is immersed in a steam chamber at 100°C,and the free end of the gold rod in an ice water bath at 0°C.The rods are both 5.0 cm long and have a square cross-section that is 2.0 cm on a side.No heat is exchanged between the rods and their surroundings,except at the ends.How much total heat flows through the two rods each minute? The thermal conductivity of silver is 417 W/m ∙ K,and that of gold is 291 W/m ∙ K.

A) 8.2 kJ
B) 9.5 kJ
C) 12 kJ
D) 14 kJ
E) 16 kJ