Video: Dab tsi ntawm kev sib tov yog qab zib thiab ntsev?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kev sib xyaw ua ke ntawm ob lub khib nyiab, tsis muaj melting lawv ua ke, feem ntau ua rau muaj qhov sib txawv sib tov . Piv txwv xws li xuab zeb thiab qab zib , ntsev thiab gravel, abasket ntawm cov khoom, thiab ib lub thawv khoom ua si uas muaj cov khoom ua si. Cov khoom xyaw nyob rau hauv ob los yog ntau theem yog heterogeneous sib tov.
Ntxiv rau qhov no, yuav ua li cas thaum ntsev thiab qab zib sib tov?
Yog kuv sib tov dej hauv ib khob nrog qab zib ntawm qee qhov kev daws teeb meem yuav ua kom saturated thiab tsis muaj ntxiv qab zib yuav yaj rau hauv dej. Yog kuv tam sim no ntxiv ntsev rau qhov kev daws teeb meem yuav ntsev yaj rau hauv dej los yog qhov kev daws teeb meem twb saturated?
Tom qab ntawd, lo lus nug yog, koj yuav ua li cas cais cov suab thaj thiab ntsev? Thaum sib tov ua ke ntsev thiab qab zib , koj tau tsim cov tshuaj heterogeneous sib tov . Cov ntsev thiab qab zib tau sib xyaw ua ke tab sis lawv ob leeg khaws lawv cov qauv tshuaj lom neeg qub. Yog li ntawd, nws yog ua tau cais lawv tawm ntawm ib leeg.
Kuj kom paub yog, hom kev sib tov yog cov piam thaj li cas?
Teb thiab piav qhia: Qab Zib dej yog homogeneous sib tov uas tuaj yeem hu ua kev daws teeb meem. Homogeneous sib tov yog ib qho ntawm cov tshuaj uas muaj kev sib xyaw ua ke thiab
Dab tsi yog qhov sib xyaw ntawm ntsev thiab dej hu ua?
Ib qho piv txwv rau homogeneous sib tov yog kev daws teeb meem. Cov khoom uas tau yaj yog cov solute. Cov khoom uas ua rau dissolving yog cov kuab tshuaj. Cov ntsev dej yog tam sim no ib tug tov, los yog homogeneous sib tov, ntsev dej.
Pom zoo:
Dab tsi yog lub tswv yim ntawm kev txhawb nqa ntawm kev sib cais ntawm kev sib deev?
Kev txhawb zog yog cov txheej txheem los ntawm kev xaiv ntuj tsim kom muaj kev sib cais ntawm kev sib deev. Kev txhawb zog tuaj yeem tshwm sim raws li hauv qab no: Thaum ob pawg neeg uas tau khaws cia sib nrug, rov qab los rau hauv kev sib cuag, qhov kev sib cais ntawm cov menyuam yaus yuav ua tiav lossis tsis tiav. Yog tias nws ua tiav, speciation tau tshwm sim
Dab tsi yog txoj kev ntawm kev sib cais sib tov?
Kev sib tov tuaj yeem sib cais siv ntau txoj kev sib cais xws li kev pom, sib cais funnel, sublimation, yooj yim distillation thiab ntawv chromatography. Cov txheej txheem tau hais los saum toj no yog txhua txoj kev siv lub cev
Dab tsi yog qhov sib txawv ntawm qhov sib txawv ntawm cov kab sib txuas thiab ntau qhov sib piv?
6. (2 lub cim) Qhov sib txawv ntawm cov kab sib txuas (kev sib piv) thiab ntau qhov sib piv yog dab tsi? Cov kab sib xyaw ua ke yog npaj sib piv; uas yog, tshwj xeeb txhais tau tias yog ua ke nyob rau hauv ntau txoj kev thiab contrasted nrog rau lwm yam kev sib txuas ntawm txhais tau tias
Dab tsi tshwm sim thaum qab zib thiab ntsev sib tov hauv dej?
Thaum koj dissolve qab zib los yog ntsev hauv aliquid-hais, dej-dab tsi tshwm sim yog tias cov piam thaj molecules txav kom haum lawv tus kheej ntawm lawv cov dej hauv ib khob los yog beaker. Ib qho kuab tshuaj, xws li qab zib, yaj hauv cov kuab tshuaj, xws li dej, ua rau cov kua ua kua
Puas yog qab zib thiab roj sib tov?
Qab zib yaj yooj yim hauv dej thiab tsis muaj roj