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Steam at 0.9 MPa and dryness fraction 0.86 expands in a cylinder behind a piston isothermally and reversibly to a pressure of 0.05 MPa and temperature of 250°C. Calculate: 3.1. Change of internal energy. 3.2. Change of enthalpy per kg of steam. 3.3. Change of entropy. 3.4. The heat supplied during the process is found to be 560 kJ/kg, calculate the work done per kilogram of steam.

Steam at 0.9 MPa and dryness fraction 0.86 expands in a cylinder behind a piston isothermally and reversibly to a pressure of 0.05 MPa and temperature of 250°C. Calculate: 3.1. Change of internal energy. 3.2. Change of enthalpy per kg of steam. 3.3. Change of entropy. 3.4. The heat supplied during the process is found to be 560 kJ/kg, calculate the work done per kilogram of steam.

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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Steam at 0.9 MPa and dryness fraction 0.86 expands in a cylinder behind a piston isothermally and reversibly to a pressure of 0.05 MPa and temperature of 250°C. Calculate: 3.1. Change of internal energy. 3.2. Change of enthalpy per kg of steam. 3.3. Change of entropy. 3.4. The heat supplied during the process is found to be 560 kJ/kg, calculate the work done per kilogram of steam.
Transcribed Image Text:Steam at 0.9 MPa and dryness fraction 0.86 expands in a cylinder behind a piston isothermally and reversibly to a pressure of 0.05 MPa and temperature of 250°C. Calculate: 3.1. Change of internal energy. 3.2. Change of enthalpy per kg of steam. 3.3. Change of entropy. 3.4. The heat supplied during the process is found to be 560 kJ/kg, calculate the work done per kilogram of steam.
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