A Hot Object Is Placed in Contact with a Cold $A$

Multiple Choice

A hot object is placed in contact with a cold object. We observe that heat flows spontaneously from the hot object to the cold object, but not in the other direction. According to the argument in this chapter, this is so because

A) this increases the entropies of both objects.
B) this decreases the entropy of the combined system.
C) the system will tend to evolve toward macropartitions that have more microstates.
D) $A$ and $C$
E) $B$ and $C$