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				| 1. | A piston cylinder has R-134a at 100 kPa, 20 C which is compressed to 500 kPa in a reversible adiabatic process. Find the specific work. | 
| A. | -41.63 kJ/kg | 
| B. | -11.63 kJ/kg | 
| C. | -21.63 kJ/kg | 
| D. | -31.63 kJ/kg | 
| Answer» E. | |