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Abstract
The surface effect in fine capillaries is considered and an analysis made of the volumetric properties of water in the subcooled region, using emulsion, capillary, and bulk specific volume (v) data. The analysis indicates that the emulsion values of v are probably too large below 253 K and consequently the expansivity (α) values are too large numerically. Compressibility, heat capacity, and ultrasonic and refractive index data are used to estimate the expansivity in the subcooled region. All these data support conclusions from the analysis of v. Below 250 K the Cp/Cv ratios from emulsion data are much larger than those from ultrasonic data and those estimated from a variety of other data. The overall conclusion (from parts I and II) is that the question concerning the accuracy of emulsion data below 253 K must remain open at present.
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