A thermodynamic system undergoes a cyclic process as shown in Fig. 19.24. The cycle
consists of two closed loops: I and II.
(a) Over one complete cycle, does the system do positive or negative work?
(b) In each of loops I and II, is the net work done by the system positive or negative?
(c) Over one P complete cycle, does heat flow into or out of the system?
(d) In each of loops I and II, does heat flow into or out of the system?

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