Video: Puas yog noj cov dej khov qhuav txaus ntshai?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Yog dej khov qhuav yog khaws cia rau hauv thaj chaw uas tsis muaj qhov cua kom raug, nws yuav ua rau tib neeg nqus pa ntau ntawm CO2, uas tso pa oxygen hauv lub cev, CDC hais. Qhov no, nyeg, tuaj yeem ua rau teeb meem cov teebmeem, suav nrog mob taub hau, tsis meej pem, tsis meej pem thiab tuag.
Tom qab ntawd, koj puas tuaj yeem mus nrog cov dej khov qhuav hauv lub tsheb?
Yog koj yog taug kev nrog dej khov qhuav hauv tsheb los yog tsheb thauj khoom, muab tso rau hauv lub tsheb lub cev lossis lub txaj tsheb. Yog koj tsheb ua tsis muaj lub cev - piv txwv li, ib SUV, SUV, hatchback ua tsis muab dej khov qhuav hauv koj tsheb . Yog koj yog taug kev nrog dej khov qhuav nyob rau hauv ib dav hlau, ceeb toom rau koj lub dav hlau sai li sai tau koj tuaj txog ntawm tshav dav hlau.
Ib qho ntxiv, puas yog cov dej khov qhuav ua kua nitrogen? Ua kua nitrogen yog xim tsis muaj ntxhiab, tsis muaj ntxhiab, cov kua liquefied meej nitrogen nrog qhov ntom ntom ntawm 0.807 g/ml ntawm nws qhov kub npau npau (-195.79 ° C (-320 ° F)) thaum dej khov qhuav yog cov khoom tsis sib xws nrog ntom ntawm 97.5189 lb/ft3 ntawm 78.5 ° C (109.3 ° F). Ob leeg kua nitrogen thiab dej khov qhuav tuaj yeem tswj tau qhov kub tsis tshua muaj neeg.
Yog li ntawd, yuav ua li cas yog tias peb kov cov dej khov qhuav?
Dej Qhuav kub txias heev ntawm -109.3 ° F lossis -78.5 ° C. Ib txwm tuav Dej Qhuav nrog saib xyuas thiab hnav daim ntaub tiv thaiv lossis hnab looj tes tawv thaum twg los xij kov nws. Lub qhov cub mitt lossis phuam yuav ua haujlwm. Yog kov luv luv nws tsis muaj teeb meem, tab sis ntev kev sib cuag nrog daim tawv nqaij yuav khov hlwb thiab ua rau raug mob zoo ib yam li kub hnyiab.
Cov dej khov qhuav siv rau dab tsi?
Feem ntau siv ntawm dej khov qhuav yog khaws cov zaub mov, siv cov tub yees uas tsis yog-cyclic. Nws yog nquag siv rau pob khoom uas yuav tsum nyob txias lossis khov, xws li dej khov qab zib los yog cov qauv lom neeg, tsis tas siv cov tshuab cua txias.
Pom zoo:
Puas yog cov dej khov qhuav siv tau sab hauv tsev?
CO2 tuaj yeem ua rau muaj kev phom sij nyob rau hauv Qhov Chaw Nyob Ceev faj thaum siv dej khov qhuav hauv tsev. Cov dej khov qhuav ua rau cov pa roj carbon dioxide, lossis CO2. ('Sublimates' txhais tau tias hloov pauv mus rau hauv cov pa los ntawm cov khoom.) Nws yog qhov txaus ntshai kom siv cov dej khov qhuav hauv chav me lossis chaw tsis muaj qhov cua nkag tau zoo
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