Volume 27, Issue 3, May 1998
Index of content:
27(1998); http://dx.doi.org/10.1063/1.556018View Description Hide Description
The available data on gas-phase basicities and proton affinities of approximately 1700 molecular, radical and atomic neutral species are evaluated and compiled. Tables of the data are sorted (1) according to empirical formula and (2) according to evaluated gas basicity. This publication constitutes an update of a similar evaluation published in 1984.
27(1998); http://dx.doi.org/10.1063/1.556019View Description Hide Description
The present review, containing 178 references, is dedicated to one of the largest and most important branches of the rarefied gas dynamics, namely internal flows. A critical analysis of the corresponding numerical data and analytical results available in the literature was made. The most reliable data were selected and tabulated. The review will be useful as a reference for mathematicians, physicists and aerodynamicists interested in rarefied gasflows. In this paper the complete ranges of the main parameters, determining rarefied gasflows through a capillary, are covered. The capillary length varies from zero, when the capillary degenerates into a thin orifice, to infinity when the end effects can be neglected. The Knudsen number, characterizing the gas rarefaction, varies from zero when the gas is considered as a continuous medium to infinity when the intermolecular collisions can be discounted. The pressure and temperature drops on the capillary ends vary from the small values when the linear theory is valid to the large values when the nonlinear equations must be applied. The influence of the gas–surface interaction is considered.
Energetics of the O–H Bond in Phenol and Substituted Phenols: A Critical Evaluation of Literature Data27(1998); http://dx.doi.org/10.1063/1.556020View Description Hide Description
This review presents a critical assessment of the available experimental information (contained in literature references) on the thermochemistry of the O–H bond in phenol and substituted phenols. The analysis led to a set of recommended values for the O–H bonddissociationenthalpies, which in turn allowed us to discuss several empirical and theoretical methodologies used to estimate these data.