Ammonia at 1 MPa, 50oC is expanded in a piston/cylinder to 500 kPa, 20oC in a reversible

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Ammonia at 1 MPa, 50oC is expanded in a piston/cylinder to 500 kPa, 20oC in a reversible process. Find the sign for both the work and the heat transfer.

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Fundamentals of Thermodynamics

ISBN: 978-0471152323

6th edition

Authors: Richard E. Sonntag, Claus Borgnakke, Gordon J. Van Wylen

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Question Posted: Feb 23, 2016 07:02 AM

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Ammonia at 1 MPa, 50oC is expanded in a piston/cylinder to 500 kPa, 20oC in a reversible

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Fundamentals of Thermodynamics

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