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Video: Dab tsi yog hlau tsis muaj melting siab thiab boiling point?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Pob zeb diamond yog ib qho allotrope / daim ntawv ntawm carbon. Yog li, carbon (nyob rau hauv daim ntawv ntawm pob zeb diamond) tsuas yog tsis yog - hlau uas muaj heev siab melting point.
Dhau li ntawm no, cov hlau tsis yog hlau twg muaj qhov kub siab tshaj plaws?
Nwh uas tsis yog hlau muaj ib tug heev melting thiab boiling point
- Thaum ib txwm atmospheric siab, carbon ncaj qha sublimes mus rau lub xeev gaseous.
- Yog hais tias lub siab yog nce, Graphite, uas yog ib qho allotrope ntawm carbon, melts ntawm.
- Graphite muaj nyob ua ib qho khoom ntawm chav tsev kub.
- Carbon kuj tseem muaj qhov kub siab heev ntawm.
Tsis tas li ntawd, qhov twg tsis yog hlau yog ib qho khoom uas muaj qhov melting siab heev? Graphite, ib daim ntawv ntawm carbon (ib qho uas tsis yog-hlau), muaj qhov kub hnyiab thiab muaj nyob rau hauv cov khoom hauv lub xeev ntawm chav tsev kub.
Lub cev muaj zog ntawm hlau thiab tsis yog - hlau.
| Hlau | Cov hlau tsis muaj hlau |
|---|---|
| Cov ntsiab lus melting siab | Tsawg cov ntsiab lus kub |
| Zoo conductors ntawm hluav taws xob | Tsis zoo conductors ntawm hluav taws xob |
Ib yam li ntawd, tib neeg nug, cov nonmetals puas muaj qhov kub kub?
Cov hlau, uas yog lub cev hloov tau yooj yim uas tuaj yeem ua tau cua sov thiab hluav taws xob, zoo li yuav tsum muaj zog hauv chav kub vim lawv qhov sib txawv cov ntsiab lus melting siab . Nonmetals , uas yog lub cev tsis muaj zog thiab tsis zoo conductors ntawm tshav kub thiab hluav taws xob, tuaj yeem ua tau zoo, kua lossis gaseous, nyob ntawm lub caij.
Cov ntaub ntawv twg muaj cov ntsiab lus melting siab?
Carbon kuj muaj tus siab tshaj melting point ntawm tag nrho cov khoom (3,500 ° C). Txawm li cas los xij, ntawm atmospheric siab, carbon tsis yaj tab sis qhov sublimes. Tungsten muaj tus siab tshaj melting point ntawm tag nrho cov hlau tsis-alloyed (3, 422 ° C) thiab qhov thib ob siab tshaj ntawm tag nrho cov ntsiab lus tom qab carbon.
Pom zoo:
Chlorine melting thiab boiling point yog dab tsi?
Lub npe Chlorine Number of Electrons 17 Melting Point -100.98 ° C Boiling Point -34.6 ° C Ceev 3.214 grams ib cubic centimeter
Dab tsi yog qhov melting thiab boiling point ntawm sodium?
Lub melting (98 ° C) thiab boiling (883 ° C) cov ntsiab lus ntawm sodium yog qis dua li cov lithium tab sis siab dua li cov hlau alkali hnyav dua poov tshuaj, rubidium, thiab caesium, tom qab lub sij hawm sib txawv ntawm pawg
Vim li cas ionic compound muaj siab melting thiab boiling point?
Ionic tebchaw muaj siab melting thiab boiling cov ntsiab lus vim hais tias muaj ib tug muaj zog electrostatic quab yuam ntawm attraction ntawm lub oppositely them ions thiab li no ib tug loj npaum li cas ntawm lub zog yuav tsum tau mus ua txhaum lub zog sib txuas ntawm ions
Hom kev sib txuas dab tsi yog yam ntxwv ntawm cov khoom uas muaj qhov kub siab melting point?
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Dab tsi yog melting boiling thiab khov point?
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