KillGorack / Physics 2010 / The P-V 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? 1) clockwise 2) counterclockwise 3) It is always positive. 4) It is always negative. 5) It is always zero.

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Question The P-V 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? 1) clockwise 2) counterclockwise 3) It is always positive. 4) It is always negative. 5) It is always zero.
Answer clockwise