Linear variations of the thermodynamic quantities in the liquid phase of carbon tetrachloride close to the melting point

✍ Scribed by H. Yurtseven; D. Kavruk

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 246 KB
• Volume: 139
• Category: Article
• ISSN: 0167-7322
• DOI: 10.1016/j.molliq.2007.11.010

✦ Synopsis

We verify here a linear variation of the specific heat C p with the thermal expansivity α p and also a linear variation of α p with the isothermal compressibility κ T for the liquid phase of carbon tetrachloride close to the melting point.

Linear relations (Pippard relations) are verified by analyzing the experimental data for the thermal expansivity α p at various pressures in the liquid phase of CCl 4 close to the melting point.

Our linear plots of C p against α p and also α p against κ T give the values of the slope dP m /dT as ~8.5MPa/K and 9.5MPa/K, respectively, which can be compared with the experimental value obtained from a P-T phase diagram close to the melting point in carbon tetrachloride.