Measurements are presented of the vapor pressure of supercooled water utilizing infrared spectroscopy, which enables unambiguous verification that the authors’ data correspond to the vapor pressure of liquid water, not a mixture of liquid water and ice. Values of the vapor pressure are in agreement with previous work. Below −13°C, the water film that is monitored to determine coexistence of liquid water (at one temperature) and ice (at another, higher, temperature) de-wets from the hydrophilic silicon prism employed in the authors’ apparatus. The de-wetting transition indicates a quantitative change in the structure of the supercooled liquid.
Journal of Atmospheric and Oceanic Technology
Measurements of the vapor pressure of supercooled water using infrared spectroscopy.
Journal of Atmospheric and Oceanic Technology,
Retrieved from: https://digitalcommons.mtu.edu/physics-fp/217