Video: Puas yog sublimation ntawm iodine hloov lub cev?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
1) Sublimation yog cov txheej txheem uas soliddirectly hloov mus rau hauv roj. 2) iodine yog ib qho piv txwv ntawm sublimation txheej txheem. 3) Sublimation yog Kev hloov lub cev , vim evaporated iodine kuj tuaj yeem hloov mus rau insolid.
Ua qhov no hauv kev xav, puas yog sublimation ntawm iodine lub cev lossis tshuaj hloov pauv?
Raws li koj tsis tuaj yeem nqa rov qab Iodine (khoom) rov qab los ntawm cov pa taws, nws yog a lub cev txheej txheem. Raws li iodine issublimating nyob rau hauv muaj huab cua (O2, N2…) nws yog ib tug tshuaj txheej txheem. Yog li, nws tuaj yeem hais tias IODINESUBLIMATION YOG PHYSIO- CHEMICAL (los yog feem ntau lub cev ) PROCESS.
vim li cas sublimation hloov lub cev? Sublimation hais txog kev hloov ntawm lub cev oftransition, thiab tsis yog rau cov ntaub ntawv uas cov khib nyiab hloov mus rau hauv cov pa roj vim a tshuaj tshuaj tiv thaiv. Vim lub hloov lub cev los ntawm asolid mus rau hauv cov roj yuav tsum tau ntxiv lub zog rau hauv cov khoom, nws yog ib qho piv txwv ntawm endothermic. hloov.
Ib yam li ntawd, puas yog sublimation hloov lub cev?
Sublimation yog a hloov lub cev . Thaum asubstance sublimes, nws kev hloov los ntawm ib tug khoom mus rau ib tug roj yam tsis tau mus txog lub kua theem. Qhov no tsis ua rau a tshuaj hloov , txawm li cas los. Cov dej khov qhuav yog cov pa roj carbon dioxide nyob rau hauv cov txheej txheem.
Dab tsi yog sublimation ntawm iodine?
Thaum khov iodine crystals yog rhuab (hauv abeaker nrog kub xuab zeb) lub iodine yuav hloov los ntawm ib tug soliddirectly mus rau ib tug roj yam tsis tau dhau los ntawm ib tug kua theem. Qhov no hu ua sublimation . Raws li cov iodine gas los tsis sib cuag nrog lub khob txias nws hloov mus rau ib qho khoom (tab sis tsis yog daim ntawv ua kua).
Pom zoo:
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