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Entropy balance closed system A piston-cylinder device initially contains 0.50 m3 of an ideal gas at 150 kPa and 20°C. The gas is 2. subjected to a constant external pressure of 400 kPa and is compressed in an isothermal process to a final pressure of 400 kPa. The temperature of the surrounding, Tơ is equal to 20°C. Heat capacity, Cpequals a constant of 25R. [1J = 1m3-Pa]. a. Draw 2 diagrams, a before and after compression. Label your diagrams. Clearly label the state properties. b. Determine the heat transfer Q [kJ] during the process. c. Calculate (AS)»ystem, (AS).urounding and (AS)total [kJ/K] d. Is the process, reversible, irreversible or impossible? Explain your answer. 4/7

Entropy balance closed system A piston-cylinder device initially contains 0.50 m3 of an ideal gas at 150 kPa and 20°C. The gas is 2. subjected to a constant external pressure of 400 kPa and is compressed in an isothermal process to a final pressure of 400 kPa. The temperature of the surrounding, Tơ is equal to 20°C. Heat capacity, Cpequals a constant of 25R. [1J = 1m3-Pa]. a. Draw 2 diagrams, a before and after compression. Label your diagrams. Clearly label the state properties. b. Determine the heat transfer Q [kJ] during the process. c. Calculate (AS)»ystem, (AS).urounding and (AS)total [kJ/K] d. Is the process, reversible, irreversible or impossible? Explain your answer. 4/7

Introduction to Chemical Engineering Thermodynamics
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
Problem 1.1P
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Entropy balance closed system A piston-cylinder device initially contains 0.50 m3 of an ideal gas at 150 kPa and 20°C. The gas is 2. subjected to a constant external pressure of 400 kPa and is compressed in an isothermal process to a final pressure of 400 kPa. The temperature of the surrounding, Tơ is equal to 20°C. Heat capacity, Cpequals a constant of 25R. [1J = 1m3-Pa]. a. Draw 2 diagrams, a before and after compression. Label your diagrams. Clearly label the state properties. b. Determine the heat transfer Q [kJ] during the process. c. Calculate (AS)»ystem, (AS).urounding and (AS)total [kJ/K] d. Is the process, reversible, irreversible or impossible? Explain your answer. 4/7
Transcribed Image Text:Entropy balance closed system A piston-cylinder device initially contains 0.50 m3 of an ideal gas at 150 kPa and 20°C. The gas is 2. subjected to a constant external pressure of 400 kPa and is compressed in an isothermal process to a final pressure of 400 kPa. The temperature of the surrounding, Tơ is equal to 20°C. Heat capacity, Cpequals a constant of 25R. [1J = 1m3-Pa]. a. Draw 2 diagrams, a before and after compression. Label your diagrams. Clearly label the state properties. b. Determine the heat transfer Q [kJ] during the process. c. Calculate (AS)»ystem, (AS).urounding and (AS)total [kJ/K] d. Is the process, reversible, irreversible or impossible? Explain your answer. 4/7
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