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) (ii) (iii) 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. Sketch the specific volumes of both phases as a function of pressure. 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) (ii) (iii) 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. Sketch the specific volumes of both phases as a function of pressure. Explain how you obtained the sketch of the specific volumes, hence show that CO₂ expands upon melting.

Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter6: Equilibria In Single-component Systems

Section: Chapter Questions

Problem 6.55E

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