A heavily insulated cylinder/piston contains ammonia at 60 C, 1200 kPa. The piston is moved, expanding the ammonia in a reversible process until the temperature is 20 C during which 600 kJ of work is given out by ammonia. What was the initial volume of the cylinder?

A heavily insulated cylinder/piston contains ammonia at 60 C, 1200 kPa

1.	A heavily insulated cylinder/piston contains ammonia at 60 C, 1200 kPa. The piston is moved, expanding the ammonia in a reversible process until the temperature is 20 C during which 600 kJ of work is given out by ammonia. What was the initial volume of the cylinder?
A.	0.285 m<sup>3</sup>
B.	0.385 m<sup>3</sup>
C.	0.485 m<sup>3</sup>
D.	0.585 m<sup>3</sup>
Answer» C. 0.485 m<sup>3</sup>

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A heavily insulated cylinder/piston contains ammonia at 60 C, 1200 kPa. The piston is moved, expanding the ammonia in a reversible process until the temperature is 20 C during which 600 kJ of work is given out by ammonia. What was the initial volume of the cylinder?

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