As a normal object's thermal energy $U$ goes to zero, the slope of a graph of its entropy $S$ versus $U$
A) approaches infinity.
B) approaches some positive value less than infinity.
C) approaches zero.
D) approaches some finite negative value.
E) approaches negative infinity.
F) depends entirely on the object's properties.

Question

Quizplus · Accepted Answer

As thermal energy $U$ approaches zero, the temperature approaches absolute zero, and the slope $\frac{dS}{dU} = \frac{1}{T}$ approaches infinity because temperature $T$ approaches zero.

As a Normal Object's Thermal Energy UUU Goes to Zero, the Slope of a Graph of Its

As a Normal Object's Thermal Energy $U$ Goes to Zero, the Slope of a Graph of Its