1.00 kg of water at 1400.0 kPa and 170.0oC is adiabatically expanded in a closed piston-cylinder device to 250.0 kPa with a second law efficiency of 0.500. Determine the actual work interaction term for this process (kJ). The second law efficiency for an expansion process is equivalent to that for a turbine.

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
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1.00 kg of water at 1400.0 kPa and 170.0oC is adiabatically expanded in a closed 
piston-cylinder device to 250.0 kPa with a second law efficiency of 0.500. Determine the actual 
work interaction term for this process (kJ). The second law efficiency for an expansion process is 
equivalent to that for a turbine.

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