Thaum twg cov khoom hloov pauv ncaj qha mus rau cov roj, qhov kev hloov ntawm lub xeev hu ua?
Thaum twg cov khoom hloov pauv ncaj qha mus rau cov roj, qhov kev hloov ntawm lub xeev hu ua?

Video: Thaum twg cov khoom hloov pauv ncaj qha mus rau cov roj, qhov kev hloov ntawm lub xeev hu ua?

Video: Thaum twg cov khoom hloov pauv ncaj qha mus rau cov roj, qhov kev hloov ntawm lub xeev hu ua?
Video: Saib Mis paub Poj niam (hluas nkauj) tus yam ntxwv lub siab 2024, Kaum ib hlis
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Sublimation yog tus txheej txheem ntawm kev hloov pauv ncaj qha los ntawm khov kho theem mus rau theem gaseous, tsis dhau los ntawm cov kua theem nruab nrab. Tsis tas li ntawd, nyob rau ntawm qhov siab ntawm qhov siab ntawm triple point, qhov kub thiab txias yuav ua rau muaj qhov nce ntxiv khov kho ua hloov dua siab tshiab rau gas tsis dhau los ntawm thaj av ua kua.

Tsis tas li ntawd, qhov kev hloov ntawm lub xeev ntawm cov khoom mus rau roj hu ua li cas?

Khoom rau roj Theem kev hloov pauv yog hu ua "sublimation." Feem ntau, cov khib nyiab tig mus rau hauv cov pa roj tsuas yog tom qab cov kua nruab nrab xeev.

Ib sab saum toj no, puas tuaj yeem hloov pauv ncaj qha mus rau cov pa roj? Cov txheej txheem uas a khoom hloov ncaj qha mus rau ib qho roj hu ua sublimation. Nws tshwm sim thaum cov particles ntawm a khov kho nqus zog txaus kom kov yeej lub zog ntawm kev nyiam ntawm lawv. Dej khov qhuav ( khov kho carbon dioxide, CO2) yog ib qho piv txwv ntawm a khov kho uas undergo sublimation.

Ib yam li ntawd, koj tuaj yeem nug, thaum lub roj hloov pauv ncaj qha mus rau cov kua hloov lub xeev hu ua?

Deposition yog theem hloov nyob rau hauv uas gas transforms rau hauv cov khoom tsis dhau los ntawm cov ua kua theem. Deposition yog txheej txheem thermodynamic. Qhov rov qab ntawm deposition yog sublimation thiab li no qee zaum deposition yog hu ua desublimation. Qhov no ua rau dej vapor rau hloov ncaj qha mus rau hauv ib qho khoom khov.

Yuav ua li cas hloov los ntawm cov khoom rau roj?

Khoom rau a Roj thiab Rov qab mus rau a Khoom Nws yog txheej txheem hu ua sublimation. Qhov yooj yim piv txwv ntawm sublimation tej zaum yuav yog cov dej khov qhuav. Dej khov qhuav yog khov kho carbon dioxide (CO2). Amazingly, thaum koj tso dej khov qhuav tawm hauv ib chav, nws tsuas yog tig hauv a gas.

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