Infrared spectroscopic study of super-critical water across the Widom line
Sign Up to like & getrecommendations! Published in 2018 at "Chemical Physics Letters"
DOI: 10.1016/j.cplett.2018.05.005
Abstract: Abstract When density is varied at a constant temperature just above the gas-liquid critical temperature, the system is found to exhibit large scale density fluctuations which are often rationalized in terms of crossing of a… read more here.
Keywords: widom line; widom; spectroscopic study; infrared spectroscopic ... See more keywords
Widom line prediction by the Soave–Redlich–Kwong and Peng–Robinson equations of state
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Supercritical Fluids"
DOI: 10.1016/j.supflu.2017.07.031
Abstract: Abstract Using cubic equations of state for a single-component fluid, we compute pseudocritical loci where the isobaric heat capacity is a relative maximum at constant pressure, or at constant temperature. These two loci, called the… read more here.
Keywords: equations state; widom line; soave redlich; robinson equations ... See more keywords
Supercritical water anomalies in the vicinity of the Widom line
Sign Up to like & getrecommendations! Published in 2019 at "Scientific Reports"
DOI: 10.1038/s41598-019-51843-0
Abstract: Supercritical water is used in a variety of chemical and industrial applications. As a consequence, a detailed knowledge of the structure-properties correlations is of uttermost importance. Although supercritical water was considered as a homogeneous fluid,… read more here.
Keywords: water anomalies; water; widom line; anomalies vicinity ... See more keywords
Thermodynamic metric geometry and the Fisher-Widom line of simple fluids.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.106.034136
Abstract: Two boundary lines are frequently discussed in the literature, separating state regions dominated by repulsion or attraction. The Fisher-Widom line indicates where the longest-range decay of the total pair correlation function crosses from monotonic to… read more here.
Keywords: fisher widom; widom line; thermodynamic metric; geometry ... See more keywords
Experimental proof of the existence of a Widom line based on peculiarities of the behavior of hydrogen in nanoporous silicate at −45°C and atmospheric pressure
Sign Up to like & getrecommendations! Published in 2017 at "Technical Physics Letters"
DOI: 10.1134/s1063785017040174
Abstract: We have experimentally studied the thermal and microwave properties of a nanoporous medium (silica gel) with hydrogen-filled pores. On cooling down to about −45°C at atmospheric pressure, the system exhibited chemical transformations, a first-order phase… read more here.
Keywords: experimental proof; widom line; atmospheric pressure; line ... See more keywords