Multiple Choice
The PV diagram of a cyclic process shows a curve that encloses an area.The work done by the heat engine,represented by the enclosed area,is positive when the path around the area proceeds in which of the following fashions?
A) clockwise
B) counterclockwise
C) It is always positive.
D) It is always negative.
Correct Answer:

Verified
Correct Answer:
Verified
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