Document Type


Date of Award


Degree Name

Master of Science in Chemical Engineering - (M.S.)


Chemical Engineering

First Advisor

Joseph Joffe

Second Advisor

George C. Keeffe

Third Advisor

Michael Frederick


The thermodynamic properties of perfluoropropane (octafluoropropane) have been determined by the author for the saturated region from -100°C to the critical temperature, 71°C. Properties in the superheated region were likewise determined by the author for temperatures from -35°C to 300°C and over a pressure range from 1 atmosphere to 40 atmospheres. Enthalpies, entropies, densities, and specific volumes are reported for both vapor and liquid phases where applicable. The datum point used in these calculations is based on a zero value for vapor enthalpy and vapor entropy at -100°C and 0.0183 atmospheres.

Constants used in the Benedict-Webb-Rubin equation of state were calculated. Calculated results using Benedict'-Webb-Rubin, Martin and Hou equations of state, and Hirschfelder's generalized equation of state in determination of P-V-T relationships were compared with the experimental data.

Pressure-temperature-volume relations were predicted using the Martin end Hou equation of state. This equation of state was also used to evaluate the isothermal variation of enthalpy and entropy with pressure.

The low pressure heat capacity equation was obtained from experimental data.

The values for temperature, pressure, specific volume, enthalpy and entropy for liquid end vapor in the saturated region and for vapor in the superheated region are reported in the form of tables. The data are also presented in the form of temperature-enthalpy and temperature-entropy diagrams.



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