Video: Puas yuav loj hloov thaum qab zib yaj hauv dej?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ua li tus pawg ntawm qab zib hloov thaum nws yog yaj hauv dej? Nyob rau hauv tag nrho cov tshuaj, thiab feem ntau cov tshuaj tiv thaiv lub cev, KEV SIV ntawm pawg yog pom. Thiab qhov no txhais tau tias. Thiab yog li peb yaj a pawg ntawm qab zib hauv a pawg ntawm dej , cov pawg ntawm qhov kev daws teeb meem yuav ua PRECISELY.
Ua kom pom qhov no, puas ntxiv qab zib rau dej hloov qhov loj?
Thaum twg qab zib yog yaj nyob rau hauv dej , qhov ntim ntawm lub dej nce, tab sis tsis ntau. Thaum twg qab zib yaj hauv dej , cov qab zib molecules siv qhov chaw nruab nrab ntawm cov dej molecules. Cov pawg ntawm tag nrho cov tshuaj sib npaug rau pawg ntawm nws cov khoom, yog li ntawd dej qab zib yog tuab dua li ntshiab dej.
Tsis tas li ntawd, vim li cas cov piam thaj ploj thaum peb yaj nws hauv dej? Qhov no yog vim qab zib yog ib yam khoom uas yog soluble hauv dej . Li no lub qab zib ploj . Tab sis yog tias qab zib yog ntxiv rau saturated tov cov qab zib yuav tsis yaj . Qhov no yog vim hais tias tus nqi ntawm solute xav tau los ntawm lub dej yog tag nrho thiab vim li no nws tsis tuaj yeem lees txais ntau tus lej ntawm cov ntsiab lus tom qab ntawd.
Ib yam li ntawd, qhov hnyav ntawm cov dej puas yuav hloov yog tias qab zib yaj hauv nws vim li cas lossis vim li cas ho tsis?
Teb: Qab Zib disintegrates hauv dej vim qhov tseem ceeb yog radiated thaum qhov me ntsis polar sucrose particles qauv intermolecular kev ruaj ntseg nrog lub polar dej atoms. Peb ua tau rau feem ntau lees tias cov ntsev cais rau hauv lawv cov khoom thaum lawv tawg hauv dej.
Puas yog dissolving hloov loj?
Kev txuag ntawm pawg Tus solute ua tsis tso tseg thaum nws yaj . Yog hais tias cov dej nyob rau hauv cov tshuaj yog evaporated, lub solute yog sab laug. Tag nrho pawg nyob zoo li qub thaum yaj.
Pom zoo:
Puas qab zib yaj thaum cua sov?
Qhov no txhais tau hais tias, es tsis yog melting ntawm ib qhov tseeb kub, qab zib tuaj yeem ua kua ntawm qhov kub sib txawv nyob ntawm qhov cua sov. Yog tias koj sov cov suab thaj sai sai, siv cov cua kub heev, nws yuav yaj ntawm qhov kub siab tshaj qhov nws xav tau yog tias koj sov nws maj mam, siv cov cua sov tsawg
Yuav ua li cas thaum ci dej qab zib reacts nrog sulfuric acid?
Thaum cov bicarbonate los ntawm ci sodacomes nyob rau hauv kev sib cuag nrog sulfuric acid tov, nws txais hydrogen ions los ua carbonic acid. Lub seething huab hwm coj ntawm npuas tsim raws li cov pa roj carbon dioxide no khiav tawm ntawm kev daws teeb meem
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
Cov khoom qab zib yaj hauv dej li cas?
Qab Zib yaj nyob rau hauv dej vim hais tias lub zog yog muab tawm thaum lub me ntsis polar sucrose molecules tsim intermolecular bonds nrog polar dej molecules. Cov ntawv cog lus tsis muaj zog uas tsim los ntawm cov kuab tshuaj thiab cov kuab tshuaj tau them nyiaj rau lub zog xav tau los cuam tshuam cov qauv ntawm ob qho tib si ntshiab solute thiab hnyav
Puas muaj kev hloov pauv ntawm lub cev lossis tshuaj lom neeg thaum muaj suab thaj yaj hauv dej?
Dissolving qab zib hauv dej yog ib qho piv txwv ntawm kev hloov lub cev. Nov yog vim li cas: Kev hloov tshuaj lom neeg tsim cov khoom siv tshuaj tshiab. Txhawm rau kom qab zib hauv dej los ua cov tshuaj hloov pauv, ib yam tshiab yuav tsum tau ua. Yog tias koj evaporate cov dej los ntawm cov kua qab zib-dej, koj nyob nraum nrog qab zib