CALCULATION OF THE MOLAR VOLUME IN THE SOLID AND LIQUID PHASES OF CCl_4

摘要

The molar volume of carbon tetrachloride is calculated as functions of temperature and pressure close to the melting point. By analyzing the experimental data for the pressure dependence of the thermal expansivity according to a power-law formula, the molar volume is calculated for the solid and liquid phases of this molecular organic compound.Our calculations show that the molar volume of the solid phase increases almost linearly as the temperature and pressure increase, so that there is no anomalous behavior close to the melting point in CCl4. In the liquid phase, it does not vary considerably within the given pressure and temperature ranges. Our calculated molar volumes can be compared with measurements for CCl4 under the given pressure and temperature variations.