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{"term":{"metadata":{"id":"03103","doi":"10.1351\/goldbook.I03103","code":"I03103","status":"current","longtitle":"IUPAC Gold Book - internal energy, U","title":"internal energy","contexts":[],"synonyms":["thermodynamic energy"],"index":"quantity","version":"2.3.3","lastupdated":"2014-02-24"},"definitions":{"definition":[{"id":"1","text":"Quantity the change in which is equal to the sum of heat, , brought to the system and work, , performed on it, . Also called thermodynamic energy.","contexts":{"in":[],"of":[]},"chemicals":[],"links":[],"math":[{"meaning":null,"type":null,"latex":"q"},{"meaning":null,"type":null,"latex":"w"},{"meaning":null,"type":null,"latex":"\\Delta U=q+w"}],"sources":["Green Book, 2nd ed., p. 48 (https:\/\/dev.goldbook.iupac.org\/files\/pdf\/green_book_2ed.pdf)","PAC, 1996, 68<\/em>, 957. 'Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)' on page 976 (https:\/\/doi.org\/10.1351\/pac199668040957)"]}]},"links":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/I03103\/html","json":"https:\/\/goldbook.iupac.org\/terms\/view\/I03103\/json","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/I03103\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/I03103\/plain","pdf":"https:\/\/goldbook.iupac.org\/terms\/view\/I03103\/pdf"},"citeas":"IUPAC. Compendium of Chemical Terminology, 2nd ed. (the \"Gold Book\"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). Online version (2019-) created by S. J. Chalk. ISBN 0-9678550-9-8. https:\/\/doi.org\/10.1351\/goldbook.","license":"Licensed under Creative Commons Attribution-NoDerivatives (CC-BY-ND) 4.0 International (https:\/\/creativecommons.org\/licenses\/by-nd\/4.0\/)","disclaimer":"The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.","accessed":"2019-08-21T06:04:34+00:00"}}