02_07_86 - DEFINITIONS OF SCIENTIFIC TERMS Brief...

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DEFINITIONS OF SCIENTIFIC TERMS Brief definitions of selected terms of importance in chemistry, physics, and related fields of science are given in this section. The selection process emphasizes the following types of terms: D Physical quantities D Units of measure D Classes of chemical compounds and materials D Important theories, laws, and basic concepts. Individual chemical compounds are not included. ±efinitions have taken wherever possible from the recom- mendations of international or national bodies, especially the International Union of Pure and Applied Chemistry (IUPAC) and International Organization for Standardization (ISO). For physical quantities and units, the recommended symbol is also given. The source of such definitions is indicated by the reference number in brackets following the definition. In many cases these official definitions have been edited in the interest of stylistic consistency and economy of space. The user is referred to the original source for further details. An asterisk (*) following a term indicates that further informa- tion can be found by consulting the index of this handbook under the entry for that term. References 1. ISO Standards Handbook 2, Units of Measurement , International Organization for Standardization, Geneva, 1992. 2. Quantities, Units, and Symbols in Physical Chemistry , Second Edition , International Union of Pure and Applied Chemistry, Blackwell Scientific Publications, Oxford, 1993. 3. Compendium of Chemical Terminology , International Union of Pure and Applied Chemistry, Blackwell Scientific Publications, Oxford, 1987. 4. A Guide to IUPAC Nomenclature of Organic Compounds , International Union of Pure and Applied Chemistry, Blackwell Scientific Publications, Oxford, 1993. 5 . Glossary of Class Names of Organic Compounds and Reactive Intermediates Based on Structure , Pure and Applied Chemistry , 67, 1307, 1995. 6. Compendium of Analytical Nomenclature , International Union of Pure and Applied Chemistry, Blackwell Scientific Publications, Oxford, 1987. 7. Nomenclature of Inorganic Chemistry , International Union of Pure and Applied Chemistry, Blackwell Scientific Publications, Oxford, 1990. 8. Glossary of Basic Terms in Polymer Science , Pure and Applied Chemistry , 68, 2287, 1996. 9. The International Temperature Scale of 1990 , Metrologia , 27, 107, 1990. 10. Compilation of ASTM Standard Definitions , American Society of Testing and Materials, Philadelphia, 1990. 11. ASM Metals Reference Book , American Society for Metals, Metals Park, OH, 1983. Ab initio method - An approach to quantum-mechanical calcula- tions on molecules which starts with the Schrödinger equation and carries out a complete integration, without introducing empirical factors derived from experimental measurement. Absorbance (
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This note was uploaded on 02/04/2011 for the course CHEM 101 taught by Professor Dr.n during the Spring '10 term at McMaster University.

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02_07_86 - DEFINITIONS OF SCIENTIFIC TERMS Brief...

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