File:15. Ослободување на големо количество енергија при согоровуање етанол.webm

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Македонски: Експеримент кој го демонстрира големото количество енергија што се ослободува при согорување етанол. Смеса од алкохолни (во случајов, етанолни) пари и воздух се пали во големо пластично шише со тесен отвор, при што се забележува голем син пламен и карактеристичен звук. Ова е пример за егзотермна реакција и е показател за големото количество енергија што се ослободува при согорување на алкохолите. Равенката на реакцијата на горење на етанол е следна:
C2H5OH(g) + 3O2(g) = 2CO2(g) + 3H2O(g).
Осмислено и изведено од Марина Стојановска, Миха Буклески и Владимир Петрушевски, Институт за хемија, ПМФ, УКИМ, Скопје.
English: An experiment that demonstrates the large amount of energy released upon combustion of ethanol. A mixture of alcohol (in this case, ethanol) vapour and air in a large plastic bottle with a small neck is ignited, resulting in a large blue flame and a 'whoosh' sound. This is an example of exothermic reaction and demonstrates the large amount of energy released in the combustion of alcohols. The reaction of burning of ethanol is represented by the following chemical equation:
C2H5OH(g) + 3O2(g) = 2CO2(g) + 3H2O(g).

Planned and performed by Marina Stojanovska, Miha Bukleski and Vladimir Petruševski, Department of Chemistry, FNSM, Ss. Cyril and Methodius University, Skopje, Macedonia.

There are no spoken or printed words in this video, so it can be used in any language.
Română: Experiment ce demonstrează cantitatea mare de energie eliberată prin combustia etanolului. Un amestec de vapori de alcool (în acest caz, etanol) și aer într-o sticlă mare de plastic cu gâtul îngust este aprins, rezultând o flacără mare și albastră și un vuiet puternic. Acesta este un exemplu de reacție exotermă și demonstrează cantitatea mare de energie eliberată prin combustia alcoolilor. Reacția de ardere a etanolului este reprezentată de următoarea ecuație chimică:
C2H5OH(g) + 3O2(g) = 2CO2(g) + 3H2O(g).

Planificat și efectuat de Marina Stojanovska, Miha Bukleski și Vladimir Petruševski, Catedra de Chimie, FNSM, Universitatea Sfinții Chiril și Metodiu, Skopje, Macedonia.
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Author Petrovskyz

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18 October 2016

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current00:47, 18 October 201611 s, 1,920 × 1,080 (7.39 MB)PetrovskyzUser created page with UploadWizard

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