FIGURE P21.60 is the pV diagram of Example 21.2, but now the device is operated in reverse.

a. During which processes is heat transferred into the gas?b. Is this Q_H, heat extracted from a hot reservoir, or Q_C, heat extracted from a cold reservoir? Explain.c. Determine the values of Q_H and Q_C.d. Is the area inside the curve Win or W_out? What is its value?e. The device is now being operated in a ccw cycle. Is it a refrigerator? Explain.

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p (atm) 1 2 3- - 2700 K 1- 3. - 300 K 0+ - ( (m³) 2 FIGURE P21.60 3. 2.