Дозволена хімічна реакція Джерела | Навігаційне менювиправивши або дописавши їїпідказкою

Хімічні реакціїФізична хімія


англ.хімічна реакція




Дозво́лена хімі́чна реа́кція (англ. allowed reaction) — хімічна реакція, яка згідно з певним критерієм може відбутись. Такими критеріями зокрема є термодинамічний, кінетичний, квантово-хімічний, топохімічний.


  • За термодинамічним до дозволених реакцій відносять ті, при яких зміна термодинамічного потенціалу є від'ємною.

  • До кінетично дозволених відносять такі, що мають низьку енергію активації.

  • До дозволених за симетрією (квантово-хімічний критерій) належать такі, при яких перетворення молекулярних орбіталей частинок реактантів у молекулярні орбіталі частинок продуктів відбувається неперервно на шляху реакції і при цьому симетрія орбіталей залишається незмінною.

  • До топохімічно дозволених належать такі реакції на поверхні, структура перехідного стану в яких узгоджується з кристалічною структурою поверхні.


Джерела |



  • Глосарій термінів з хімії // Й. Опейда, О. Швайка. Ін-т фізико-органічної хімії та вуглехімії ім. Л. М. Литвиненка НАН України, Донецький національний університет. — Донецьк: Вебер, 2008. — 758 с. — ISBN 978-966-335-206-0.






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