Over a certain small range of pressures and temperatures , the equation of state of a certain substance is given with reasonable accuracy by the relation : (Pv)/(RT) = 3DP - C * (T^ 3)/P where Cand D are constants . Derive an expression for a ) the change of enthalpy of this gas in an isothermal process . (Eq.12-36) and b ) the change of entropy (Eq.12-41) av S2 S = dT dP (12–41) P. can be used to determine the entropy change. The proper P2 av h2 - h, = Cp dT + (12-36) %3D |
Over a certain small range of pressures and temperatures , the equation of state of a certain substance is given with reasonable accuracy by the relation : (Pv)/(RT) = 3DP - C * (T^ 3)/P where Cand D are constants . Derive an expression for a ) the change of enthalpy of this gas in an isothermal process . (Eq.12-36) and b ) the change of entropy (Eq.12-41) av S2 S = dT dP (12–41) P. can be used to determine the entropy change. The proper P2 av h2 - h, = Cp dT + (12-36) %3D |
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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Transcribed Image Text:Over a certain small range of pressures and temperatures , the equation of
state of a certain substance is given with reasonable accuracy by the
relation :
(Pv)/(RT) = 3DP - C * (T^ 3)/P where Cand D are constants . Derive an
expression for a ) the change of enthalpy of this gas in an isothermal
process . (Eq.12-36) and b ) the change of entropy (Eq. 12-41)
P2
av
S2 - S =
dT -
dP
(12-41)
can be used to determine the entropy change. The proper
T
P2
h2 – h,
Cp dT +
(12-36)
%3D
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