Video: Yuav ua li cas txiav txim lub xeev ntawm ib yam khoom?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ob yam txiav txim seb a yam khoom yog ib yam khoom, kua, los yog roj: lub kinetic zog ntawm cov particles (atoms, molecules, los yog ions) uas tsim ib tug yam khoom . Kinetic zog nyiam ua kom cov khoom txav sib nrug. Qhov txaus nyiam sib cuam tshuam cov rog ntawm cov khoom uas nyiam kos cov khoom ua ke.
Kuj tseem paub yog, dab tsi txiav txim siab txog lub xeev ntawm cov khoom?
Tus nqi ntawm lub zog nyob rau hauv molecules ntawm teeb meem txiav txim lub xeev ntawm teeb meem . Teeb meem tuaj yeem muaj nyob hauv ib qho ntawm ntau lub xeev, suav nrog roj, kua, lossis khoom xeev . Lub zog ntawm cov atoms lossis molecules tsis muaj zog txaus los tuav lawv ua ke.
Ib yam li ntawd, dab tsi txiav txim siab txog lub xeev ntawm cov khoom ntawm chav tsev kub? Ntawm chav kub tus yam khoom yog at a kub nruab nrab ntawm melting point thiab boiling point. Yog li nws yuav ua kua. Yog li theem ntawm a yam khoom kua roj orsolid nyob ntawm lawv cov ntsiab lus melting, boiling point, chav kub thiab siab.
Ib tug kuj yuav nug, dab tsi txiav txim lub xeev ntawm ib yam khoom qhia ib txoj kev los liquefy gases?
1: Qhov kub thiab txias tshuaj txiav txim lub xeev ntawm yam khoom . 2: Roj tuaj yeem yog ua kua los ntawm kev ua kom lawv siab los yog txo qhov kub ntawm qhov gas hauv qab kub taw tes, los yog ua ob qho tib si.
Dab tsi txiav txim siab lub xeev ntawm cov dej?
Tus naj npawb ntawm bonds ntawm molecules txiav txim seb dej yuav yog ib qho khoom, kua, lossis roj. Hauv cov khoom xeev , dej molecules muaj qhov siab tshaj plaws ntawm hydrogen bonds (4 ib molecule), muab dej lub rigid yam ntxwv ntawm dej khov.
Pom zoo:
Yam khoom twg feem ntau txiav txim siab seb lub hnub qub loj lossis lub hnub qub supergiant yuav tsim?
Pawg (1) feem ntau txiav txim siab seb lub hnub qub loj lossis lub hnub qub supergiant yuav tsim. Cov hnub qub tsim nyob rau hauv cov cheeb tsam ntawm qhov ntom ntom hauv thaj tsam interstellar. Cov cheeb tsam no yog hu ua molecular huab thiab muaj feem ntau ntawm hydrogen. Helium, nrog rau lwm cov ntsiab lus, kuj pom nyob rau hauv cheeb tsam no
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Yuav ua li cas koj txiav txim siab uas yog tus nqi txiav txim kauj ruam?
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