Second Law of Thermodynamics - GATE ME '05
A vapor absorption refrigeration system is a heat pump with three thermal reservoirs as shown in the figure. A refrigeration effect of 100 W is required at 250 K when the heat source available is at 400 K. Heat rejection occurs at 300 K. The minimum value of heat required (in W) is
A. 167 B. 100 C. 80 D. 20
Answer:
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