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- Q2797526 subject Q6151722.
- Q2797526 abstract "Effervescence is the escape of gas from an aqueous solution and the foaming or fizzing that results from a release of the gas. The word effervescence is derived from the Latin verb fervere (to boil), preceded by the adverb ex. It has the same linguistic root as the word fermentation.Effervescence can also be observed when opening a bottle of champagne, beer or carbonated beverages such as soft drinks. The visible bubbles are produced by the escape from solution of the dissolved gas (which itself is not visible while dissolved in the liquid).Although CO2 is most common for beverages, nitrogen gas is sometimes deliberately added to certain draught beers. The smaller bubble size creates a smoother beer head. Due to the poor solubility of nitrogen in beer, kegs or widgets are used for this.In the laboratory, a common example of effervescence is seen if hydrochloric acid is added to a block of limestone. If a few pieces of marble or an antacid tablet are put in hydrochloric acid in a test tube fitted with a bung, effervescence of carbon dioxide can be witnessed.CaCO3 + 2 HCl → CaCl2 + H2O + CO2This process is generally represented by the following reaction, where a pressurized dilute solution of carbonic acid in water releases gaseous carbon dioxide at decompression:H2CO3 → H2O + CO2In simple terms, it is the result of the chemical reaction occurring in the liquid which produces a gaseous product.".
- Q2797526 thumbnail Soda_bubbles_macro.jpg?width=300.
- Q2797526 wikiPageWikiLink Q104334.
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- Q2797526 wikiPageWikiLink Q274083.
- Q2797526 wikiPageWikiLink Q360625.
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- Q2797526 wikiPageWikiLink Q397.
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- Q2797526 wikiPageWikiLink Q41760.
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- Q2797526 wikiPageWikiLink Q5249574.
- Q2797526 wikiPageWikiLink Q6151722.
- Q2797526 wikiPageWikiLink Q627.
- Q2797526 wikiPageWikiLink Q906356.
- Q2797526 wikiPageWikiLink Q947211.
- Q2797526 comment "Effervescence is the escape of gas from an aqueous solution and the foaming or fizzing that results from a release of the gas. The word effervescence is derived from the Latin verb fervere (to boil), preceded by the adverb ex. It has the same linguistic root as the word fermentation.Effervescence can also be observed when opening a bottle of champagne, beer or carbonated beverages such as soft drinks.".
- Q2797526 label "Effervescence".
- Q2797526 depiction Soda_bubbles_macro.jpg.