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August 31, 2015

Homework Help: College Physics

Posted by Tracy on Monday, November 22, 2010 at 4:12pm.

Which one of the following statements about a thermodynamic engine is not true, i.e., which one of the statements is false?
1)The internal energy is always the same at the beginning and at the end of one cycle.
2)The absorbed and the exhausted heat have the same magnitude.
3)No engine can be more efficient than a Carnot engine.
4)The pressure is always the same at the beginning and at the end of one cycle.
5)The path in a pV-diagram is closed.

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