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1. |
The compressor in a refrigerator takes R-134a in at 100 kPa, 20 C and then compresses it to 1 MPa, 40 C. With the room temperature at 20 C find the minimum compressor work. |
A. | -48.19 kJ/kg |
B. | -58.19 kJ/kg |
C. | -68.19 kJ/kg |
D. | -78.19 kJ/kg |
Answer» B. -58.19 kJ/kg | |