A Cyclic Process Is Carried Out on an Ideal Gas

Multiple Choice

A cyclic process is carried out on an ideal gas such that it returns to its initial state at the end of a cycle.

If the process was carried out in a clockwise sense around the enclosed area, as shown on the p-V diagram in Figure 12-2, then the change of internal energy over the full cycle

A) is positive.
B) is negative.
C) is zero.
D) cannot be determined from the information given.