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1. |
Air at 100 kPa, 2°C occupies a 10 liters piston-cylinder device that is arranged to maintain constant air pressure. This device is now heated until its volume is 20 liters. The work produced by the air is |
A. | 20 kJ |
B. | 10 kJ |
C. | 2 kJ |
D. | 1 kJ |
Answer» E. | |