An insulated piston-cylinder device contains 0.05 m³ of saturated frigerant-134a at 32°C. The refrigerant is now allowed to expand in a reversible until the pressure drops to 0.4 MPa. Determine e initial pressure of the refrigerant-134a, e final temperature in the cylinder, e work done by the refrigerant. R-134a 0.05 m³ 32°C

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