The Zeno (Z=I) Behavior of Equations of state: An interpretation across Scales from Macroscopic to Molecular

Article Abstract:

The regularity exhibited by fluids along the contour of the unit compressibility factor in the temperature-density plane, where Z triple bond PV/RT=I, is explored as a means for testing and improving the volumetric equations of state. It is observed that for a wide range of pure fluids, this contour known as the Zeno line is nearly linear from the Boyle temperature of the low-density vapor to around the triple point in the liquid region.

Chemical vapor deposition, Chemical vapour deposition

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Absolute molecular orientational distribution of the polystyrene surface

Article Abstract:

The absolute molecular orientational distribution of the pendant phenyl groups at the free surface of polystyrene (PS) thin films on oxidized silicon substrates is studied using vibrationally resonant sum frequency generation (VR-SFG). Results show that at the PS-air interface, the pendant phenyl groups are oriented away from the film.

Semiconductors and related devices, Semiconductor and Related Device Manufacturing, Plastics Material and Resin Manufacturing, Plastics materials and resins, Thin Film Materials, Polystyrene, Styrene Resins, Polystyrene Resins NEC, Thin films, Dielectric films, Atomic properties

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Molecular simulations of dense hydrothermal NaCl-H2O solutions from subcritical to supercritical conditions

Article Abstract:

Research is presented describing the use of a molecular dynamics simulation to show how simple models can be used to predict complex macroscopic behavior in dense hydrothermal solutions.

Models, Usage, Molecules, Chemical models

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