Video: Puas yog dej npau npau yog lub cev lossis tshuaj lom neeg?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Boiling dej : Boiling dej yog ib qho piv txwv ntawm a hloov lub cev thiab tsis yog a tshuaj hloov vim cov dej vapor tseem muaj tib lub qauv molecular li kua dej (H2O). Yog hais tias cov npuas tau tshwm sim los ntawm decomposition ntawm ib tug molecule rau hauv cov pa roj (xws li H2O → H2 thiab O2), ces boiling yuav yog a tshuaj hloov.
Tib neeg kuj nug, cov dej npau npau yog lub cev lossis tshuaj hloov pauv?
A tshuaj hloov yog thaum muaj pes tsawg leeg ntawm ib yam khoom kev hloov los yog 1 los yog ntau yam khoom sib xyaw los yog tawg ua cov khoom tshiab (kua dej thiab gaseous dej yog ob leeg Dej ). Yog li, boiling dej yog a Lub cev hloov pauv yooj yim thiab yooj yim.
Tom qab ntawd, lo lus nug yog, cov npuas hauv cov dej npau npau puas muaj tshuaj lom neeg? Cov no npuas tsis yog cov npuas txuam nrog boiling dej , txawm li cas los. Thaum twg dej yog boiled , nws dhau qhov kev hloov ntawm lub cev, tsis yog a tshuaj hloov. Cov molecules ntawm dej tsis txhob sib cais rau hauv hydrogen thiab oxygen. Daim ntawv gaseous yog dej vapor.
Ib tug kuj yuav nug, hom tshuaj tiv thaiv dab tsi yog boiling dej?
Vim peb yuav tsum ntxiv cua sov, boiling dej yog ib txoj kev uas chemists hu ua endothermic. Kom meej meej, yog tias qee cov txheej txheem xav tau cua sov, lwm tus yuav tsum muab cov cua sov thaum lawv ua. Cov no yog hu ua exothermic.
Puas yog qhov hluav taws kub hloov lub cev lossis tshuaj lom neeg?
Hlawv ntoo yog a tshuaj hloov raws li cov khoom tshiab uas hloov tsis tau rov qab (xws li carbon dioxide) raug tsim. Piv txwv li, yog ntoo yog hlawv nyob rau hauv ib lub qhov cub, tsis muaj ntoo lawm, tab sis tshauv. Sib piv: Kev hloov ntawm lub cev - Qhov opposite ntawm a tshuaj hloov yog a hloov lub cev.
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