CO2 has a positive slope on the melting (fusion) curve. Using the questions below as a guide, show that CO2 expands upon melting, without employing the Clausius-Clapeyron equation. (i) Sketch the specific Gibbs free energies of both phases as a function of pressure using the p - T phase diagram. Use derivatives of the specific Gibbs free energies to obtain the sketch. (ii) Sketch the specific volumes of both phases as a function of pressure. (iii) Explain how you obtained the sketch of the specific volumes, hence show that CO2 expands upon melting.
CO2 has a positive slope on the melting (fusion) curve. Using the questions below as a guide, show that CO2 expands upon melting, without employing the Clausius-Clapeyron equation. (i) Sketch the specific Gibbs free energies of both phases as a function of pressure using the p - T phase diagram. Use derivatives of the specific Gibbs free energies to obtain the sketch. (ii) Sketch the specific volumes of both phases as a function of pressure. (iii) Explain how you obtained the sketch of the specific volumes, hence show that CO2 expands upon melting.
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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Question
![CO2 has a positive slope on the melting (fusion) curve. Using the questions below as a guide, show
that CO2 expands upon melting, without employing the Clausius-Clapeyron equation.
(i)
Sketch the specific Gibbs free energies of both phases as a function of pressure using the
p-T phase diagram. Use derivatives of the specific Gibbs free energies to obtain the
sketch.
(ii)
Sketch the specific volumes of both phases as a function of pressure.
(iii)
Explain how you obtained the sketch of the specific volumes, hence show that CO2 expands
upon melting.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9955b1cb-c269-4888-883f-072668c10b32%2F847ed9df-13b5-442c-9aae-3707aaed570a%2F1gh172l_processed.png&w=3840&q=75)
Transcribed Image Text:CO2 has a positive slope on the melting (fusion) curve. Using the questions below as a guide, show
that CO2 expands upon melting, without employing the Clausius-Clapeyron equation.
(i)
Sketch the specific Gibbs free energies of both phases as a function of pressure using the
p-T phase diagram. Use derivatives of the specific Gibbs free energies to obtain the
sketch.
(ii)
Sketch the specific volumes of both phases as a function of pressure.
(iii)
Explain how you obtained the sketch of the specific volumes, hence show that CO2 expands
upon melting.
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