One End of a Metal Rod Is in Contact with a Reservoir

question 27

Multiple Choice

One end of a metal rod is in contact with a reservoir at a 400K and the other end in contact with a reservoir at 100K.The rod and reservoirs make up a closed system.If 5500 J are conducted from one end to the other uniformly (no change in temperature along the rod) what is the change in entropy of the system?

• A)8.56 J/K
• B)10.9 J/K
• C)25.4 J/K
• D)41.3 J/K
• E)68.8 J/K

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