Abstract

The partial molar entropy and enthalpy of benzene in poly(ethylene oxide) solution have been determined over concentration ranges from 0 to 20 wt% for temperatures from 70° to 150°C using the corresponding-states theory of Prigogine and Flory. These results show that both the partial molar entropy and enthalpy of benzene in poly(ethylene oxide) increase as the segment fraction of poly(ethylene oxide) increases and decrease as temperature increases. The partial molar enthalpy is positive from 70° to 150°C.

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