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Steam undergoes change from an initial state of 450C & 3000kPa to a final state of 140C & 232 kPa.  Determine Delta H & Delta S..... By Equations for an ideal gas...

Steam undergoes change from an initial state of 450C & 3000kPa to a final state of 140C & 232 kPa.  Determine Delta H & Delta S..... By Equations for an ideal gas...

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 undergoes change from an initial state of 450C & 3000kPa to a final state of 140C & 232 kPa. 

Determine Delta H & Delta S..... By Equations for an ideal gas...

 

 

please help. i pulled up values off steam tables but i dont know if i am on the right direction.....

T₁ = 450°C → 723°K T₂ 140°C →→ 413°K P₁ = 3000kPa → 3MPa P₂ = 235kPa → 235MPa By equations from ideal gas equation → kJ CpSTEAM 1.8723- kg. K AH = mc₂AT = -580.41 AS = Cp In (²/²) - Rln AS = 0.131 kJ kg kJ k.mol K = 2.358- 1moln20 18g J gmᵒK C = A + BT + CT² + DT-² A = 3.470, B = 1.450 * 10-3 C =* D = 0.121 10-5
Transcribed Image Text:T₁ = 450°C → 723°K T₂ 140°C →→ 413°K P₁ = 3000kPa → 3MPa P₂ = 235kPa → 235MPa By equations from ideal gas equation → kJ CpSTEAM 1.8723- kg. K AH = mc₂AT = -580.41 AS = Cp In (²/²) - Rln AS = 0.131 kJ kg kJ k.mol K = 2.358- 1moln20 18g J gmᵒK C = A + BT + CT² + DT-² A = 3.470, B = 1.450 * 10-3 C =* D = 0.121 10-5
T To Gp ar - R
Transcribed Image Text:T To Gp ar - R
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