Quantities, Units and Symbols in Physical Chemistry
Royal Society of Chemistry, 2007 - Science - 233 pages
Quantities, Units and Symbols in Physical Chemistry Third Edition The first IUPAC Manual of Symbols and Terminology for Physicochemical Quantities and Units (the "Green Book") of which this is a successor, was published in 1969, with the objective of 'securing clarity and precision, and wider agreement in the use of symbols, by chemists in different countries, among physicists, chemists and engineers, and by editors of scientific journals'. Subsequent revisions have taken account of many developments in the field, culminating in the major extension and revision represented by the 1988 edition under the title Quantities, Units and Symbols in Physical Chemistry. This third edition (2007) is a further revision of the material which reflects the experience of the contributors and users with the previous editions. The book has been systematically brought up to date and new sections have been added. It strives to improve the exchange of scientific information between different disciplines in the international pursuit of scientific research. In a rapidly expanding scientific literature where each discipline has a tendency to retreat into its own jargon, this book attempts to provide a compilation of widely used terms and symbols from many sources together with brief understandable definitions and explanations of best practice. Tables of important fundamental constants and conversion factors are included. Precise scientific language encoded by appropriate definitions of quantities, units and symbols is crucial for the international exchange in science and technology, with important consequences for modern industrial economy. This is the definitive guide for scientists, science publishers and organizations working across a multitude of disciplines requiring internationally approved nomenclature in the area of Physical Chemistry.
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The SI unit and commonly used units of A S
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102 SECONDARY SOURCES
absorption coefficient amount of substance angle angular momentum atomic mass unit atomic units atomic weight base units cell CGPM Chem Chemistry collision component concentration coordinate Debye defined Definition SI unit denotes dimensionless electric field electrochemical electrochemical cell electron electronvolt element elementary charge elementary reaction energy entities equation equilibrium Examples expressed factor fraction frequency function Gaussian given integral International isotopic IUPAC lattice length matrix molality mole molecular molecule Name Symbol Definition names and symbols notation nuclear nuclide numerical values orbital particles phase physical quantities polarizability prefix pressure proton Pure Appl quadrupole Quantities and units quantity calculus quantum number radiation recommended resonance rotational Section SI base units SI prefix SI unit solution specified spectral spectroscopy spin stoichiometric stoichiometric number subscript superscript surface temperature tensor thermal thermodynamic transition unified atomic mass unit Notes vacuum vector vibrational volume wavefunction wavenumber