VAPOR-PRESSURE METHODS - A SOURCE OF EXPERIMENTAL THERMODYNAMIC DATA

An overview is given of the vapor pressure methods which are used for the determination of partial thermodynamic quantities. The methods are divided into four groups: static methods (pressure gauges, atomic abs orption, and others); dynamic methods (boiling point method, transpira tion method); effusion methods (Langmuir method, different variants of the Knudsen method); equilibration methods (equilibration with gas mi xtures, isopiestic method, dew point method). The characteristics of e ach group are discussed shortly, and some examples of application are given from the recent literature.