Video: Puas yog tag nrho cov kuab tshuaj yaj hauv cov kuab tshuaj?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov kuab tshuaj thiab cov kuab tshuaj tej zaum yuav yog ib lub xeev ntawm teeb meem. Ntau solutes yaj nyob rau hauv dej vim dej yog ib tug heev polar compound. Ib txoj cai dav dav: zoo li yaj nyiam Rau Piv txwv li, polar solvents dissolve polar solutes, thiab nonpolar solvents dissolve nonpolar solutes.
Ua li no, cov kuab tshuaj puas yaj hauv cov kuab tshuaj?
Hauv chemistry, ib txoj hauv kev los txiav txim siab tias a hnyav yuav yaj ib muab daws yog "zoo li yaj zoo li." Cov kuab tshuaj tsim los ntawm polar molecules, xws li dej, yaj lwm cov kab mob ncov qaumteb qabteb, xws li cov ntsev ntsev, thaum tsis yog lub hnub qub cov kuab tshuaj , xws li roj av, yaj nonpolar tshuaj xws li siv quav ciab.
Tsis tas li ntawd, yuav ua li cas tshwm sim thaum cov kuab tshuaj yaj hauv cov kuab tshuaj? Ib qho kev daws teeb meem yog tsim thaum ib yam khoom hu ua tus daws " yaj "mus rau lwm yam khoom hu ua hnyav . Dissolving yog thaum lub daws tawg los ntawm ib tug loj crystal ntawm molecules mus rau hauv ntau me me pawg los yog ib tug neeg molecules. Lawv ua qhov no los ntawm rub tawm cov ions thiab tom qab ntawd ncig cov ntsev molecules.
Yog li ntawd, dab tsi attractions yuav tsum tau kov yeej ua ntej ib tug solute yuav yaj nyob rau hauv ib tug hnyav?
A solute yuav yaj nyob rau hauv ib tug hnyav os y daws - hnyav zog of nyiam yog txaus txaus rau kov yeej cov daws - daws thiab hnyav - hnyav zog of kev nyiam . A solute yuav tsis yaj os y daws - hnyav zog of nyiam tsis muaj zog tshaj tus kheej daws thiab hnyav intermolecular chaw ncig ua si.
Cov dej ntsev puas yog cov kuab tshuaj los yog kuab tshuaj?
Cov daws feem ntau yog tam sim no nyob hauv tus nqi me dua li hnyav . Ib qho piv txwv ntawm qhov no yuav ua kom yaj ib teaspoon ntawm lub rooj ntsev (NaCl) hauv dej (H2O). Dej yog hnyav thiab cov ntsev yog daws thiab ua ke lawv ua ib ntsev (saline) tov.
Pom zoo:
Puas yog cov tshuaj yaj cov tshuaj yaj yeeb ua tau zoo?
Txog qhov kawg no, cov kws tshawb fawb tau tsim cov tshuaj uas muaj cov hlau nplaum uas tuaj yeem tso rau hauv cov ntshav khov los ntawm kev siv lub zog sib nqus thiab tuaj yeem yaj cov ntshav khov mus txog 4,000 zaug ntau dua li cov tshuaj zoo ib yam li cov enzyme. Txoj kev tshawb fawb tshiab no tseem yuav pab txo cov tshuaj ntau ntxiv, yog li zam ntau yam kev phiv
Kev daws cov kuab tshuaj thiab kuab tshuaj yog dab tsi?
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Dab tsi yog cov kuab tshuaj kuab tshuaj thiab kuab tshuaj?
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Puas yog tshuaj dawb tua tag nrho cov kab mob thiab cov kab mob?
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