The PV Diagram of a Cyclic Process Shows a Curve

question 81

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.

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