Video: Yuav ua li cas thaum lub sij hawm hloov theem?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lawv yog kev hloov hauv kev sib txuas lub zog ntawm cov molecules. Yog cua sov tuaj rau hauv ib yam khoom thaum a theem hloov , ces lub zog no yog siv los rhuav cov bonds ntawm lub molecules ntawm cov khoom. Cov cua sov yog siv los rhuav tshem cov kev sib txuas ntawm cov dej khov molecules thaum lawv tig mus ua kua theem.
Ua li no, ua li cas rau lub zog thaum lub sijhawm hloov pauv?
Cov zog uas yog hloov thaum lub sij hawm hloov yog muaj peev xwm zog . Thaum lub sijhawm hloov pauv , cov cua sov ntxiv (PE nce) lossis tso tawm (PE txo) yuav tso cai rau cov molecules txav sib nrug los yog tuaj ua ke. Thaum tshav kub kub absorbed ua rau cov molecules txav mus deb sib nrug los ntawm overcoming lub intermolecular rog ntawm attraction.
Ib sab saum toj no, lub ntsiab lus ntawm kev hloov theem yog dab tsi? 1. theem hloov -a hloov los ntawm ib lub xeev (khoom los yog kua lossis roj) mus rau lwm qhov tsis muaj a hloov nyob rau hauv tshuaj muaj pes tsawg leeg. theem kev hloov , lub cev hloov , xeev hloov . khov, khov - tshem tawm ntawm tshav kub mus rau hloov ib yam dab tsi los ntawm cov kua mus rau ib qho khoom. liquefaction - kev hloov pauv ntawm cov khoom lossis cov roj rau hauv cov kua.
Tib neeg kuj nug, yuav ua li cas hloov theem tshwm sim?
Melting tshwm sim thaum khov kev hloov mus ua kua. khov tshwm sim thaum cov kua ua kua. Condensation muaj ib tug gas ua kua. Theem hloov xav tau qhov sib ntxiv ntawm lub zog hluav taws xob (melting, evaporation, thiab sublimation) lossis rho tawm ntawm lub zog hluav taws xob (condensation thiab khov).
Vim li cas qhov kev hloov theem tseem ceeb?
Theem hloov , xws li kev hloov pauv ntawm cov dej ua kua rau chav, muab ib qho tseem ceeb piv txwv ntawm ib qho system uas muaj qhov loj hloov nyob rau hauv lub zog sab hauv nrog ntim ntawm qhov kub thiab txias.
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