Consider a rigid container with 2 moles of an ideal gas initially at 8 bar and 337 o How much heat needs to be removed to bring the pressure in the chamber to 1 bar? Calculate also the W, DU and DH during the process. Assume a constant heat capacity at constant pressure (Cp =7R/2). Follow the guide attached as picture Tnihat state1.idealgaideal goWe?su:?P-8 barP 1barT 337°CSystem ideal gas contained in the ngid containerclosed syotem, APE=O S oKE=OMass balanceMAratEMntial=m suice there ano chemicelreaction)GEBA(nu)AMU)=Q+W2o why?Cy:f(T)only forn Cy (I-T)Q unknowns Tewe need one more intensive property at the final statelclosed system, ngid containervolume is constantSpecihic volume is constantPe Pf YEKTFsecond eqUationPSolve forIf Q, Au & AH,what is w?

Answered: Consider a rigid container with 2 moles…

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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Consider a rigid container with 2 moles of an ideal gas initially at 8 bar and 337 ^o How much heat needs to be removed to bring the pressure in the chamber to 1 bar? Calculate also the W, DU and DH during the process. Assume a constant heat capacity at constant pressure (C_p =7R/2).

Follow the guide attached as picture

Tnihat state
1.
ideal
ga
ideal go
We?
su:?
P-8 bar
P 1bar
T 337°C
System ideal gas contained in the ngid container
closed syotem, APE=O S oKE=O
Mass balance
MAratEMntial=m suice there a
no chemicel
reaction)
GEB
A(nu)
AMU)=Q+W
2o why?
Cy:f(T)
only for
n Cy (I-T)Q unknowns Te
we need one more intensive property at the final statel
closed system, ngid container
volume is constant
Specihic volume is constant
Pe Pf YE
KTF
second eqUation
P
Solve for
If Q, Au & AH,
what is w?

Expert Solution

Step 1 Given data

Number of moles of the gas n = 2 moles

Pressure, $P_{1} = 8 b a r$

Pressure, $P_{2} = 1 b a r$

Temperature, $T_{1} = 337 ° C = (337 + 273) K = 610 K$

Constant heat capacity at constant pressure , $C_{P} = 7 R / 2$

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