1. Please consider a pure substance undergoing a phase change. For a pure substance, the temperature will be constant during a phase change. a. Please show the integrate of the Definition of Entropy to show that for the phase change of a pure substance %3D Tph where the superscript "ph" indicates a phase change. b. Please show the reduction of the Energy Balance for a pure substance for during a phase change to show that -ph Ah' c. Please substitute the result in Part b into the result in Part a to show that ph Ah' Tph

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
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Please consider a pure substance undergoing a phase change. For a pure substance, the temperature will
be constant during a phase change.
a. Please show the integrate of the Definition of Entropy to show that for the phase change of a pure
1.
substance
%3D
Tph
where the superscript "ph" indicates a phase change.
b. Please show the reduction of the Energy Balance for a pure substance for during a phase change to
show that
ph
Ah'
%3D
c. Please substitute the result in Part b into the result in Part a to show that
-ph
Ah'
4gPh
Tph
Transcribed Image Text:Please consider a pure substance undergoing a phase change. For a pure substance, the temperature will be constant during a phase change. a. Please show the integrate of the Definition of Entropy to show that for the phase change of a pure 1. substance %3D Tph where the superscript "ph" indicates a phase change. b. Please show the reduction of the Energy Balance for a pure substance for during a phase change to show that ph Ah' %3D c. Please substitute the result in Part b into the result in Part a to show that -ph Ah' 4gPh Tph
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