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				| 1. | In a Carnot-cycle heat pump, heat is rejected from R-22 at 40°C, during which the R-22 changes from saturated vapor to saturated liquid. The heat is transferred to the R-22 at 0°C. Determine the COP for the cycle. | 
| A. | 6.83 | 
| B. | 7.83 | 
| C. | 8.83 | 
| D. | 9.83 | 
| Answer» C. 8.83 | |