Question

A metal rod is used to conduct heat between two reservoirs at temperatures Th and Tc, respectively. When an amount of heat Q flows through the rod from the hot to the cold reservoir, what is the net entropy change of the rod, the hot reservoir, the cold reservoir, and the universe?

What is the relationship between the net entropy change of the rod and the heat transfer?

A. Entropy change is inversely proportional to heat transfer
B. Entropy change is directly proportional to heat transfer
C. Entropy change is independent of heat transfer
D. Entropy change is logarithmically related to heat transfer

Answer 1

The net entropy change is directly proportional to heat transfer.

Step-by-step explanation:

The net entropy change of the rod, the hot reservoir, the cold reservoir, and the universe can be determined based on the amount of heat (Q) flowing from the hot to the cold reservoir. The relationship between the net entropy change of the rod and the heat transfer is that entropy change is directly proportional to heat transfer, which means that when more heat is transferred, the entropy change increases.