Video: Cov yam ntxwv ntawm kev daws teeb meem yog dab tsi?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Plaub qhov tseem ceeb sib txuas khoom uas peb yuav tshuaj xyuas ntawm no yog vapor siab kev nyuaj siab, ua kom kub dhau qhov siab, khov khov kev nyuaj siab, thiab osmotic siab. Molecular compounds cais mus rau hauv ib tus neeg molecules thaum lawv yaj, yog li rau txhua txhua 1 mol ntawm molecules yaj, peb tau txais 1 mol ntawm hais.
Tom qab ntawd, 3 yam khoom ntawm kev daws teeb meem yog dab tsi?
Cov khoom sib koom ua ke yog cov yam ntxwv muaj kev daws teeb meem uas nyob ntawm seb muaj pes tsawg tus solute hais, tsis yog tus kheej. Rau cov kua, muaj qhov qis dua vapor siab, siab dua kub taw tes , txo qhov chaw khov, thiab siab dua osmotic.
Ib tug kuj yuav nug, dab tsi yog 10 kev daws teeb meem piv txwv? Piv txwv ntawm cov kev daws teeb meem hauv tsev yuav suav nrog cov hauv qab no:
- kas fes lossis tshuaj yej.
- qab zib tshuaj yej los yog kas fes (qab zib ntxiv rau kev daws)
- tej kua txiv.
- dej ntsev.
- tshuaj dawb (sodium hypochlorite yaj hauv dej)
- dej qab zib (xws li xab npum yaj hauv dej)
- carbonated dej haus (carbon dioxide yaj nyob rau hauv dej yog dab tsi muab sodas lawv fizz)
Tib neeg tseem nug, qhov tseeb ntawm cov cuab yeej ntawm kev daws teeb meem yog dab tsi?
A muaj tseeb daws yog homogeneous sib tov nrog uniform khoom thoob plaws. Hauv a muaj tseeb daws qhov kev daws teeb meem tsis tuaj yeem raug cais los ntawm kev daws teeb meem los ntawm kev pom. Qhov loj me me ntawm cov kuab tshuaj yog hais txog tib yam li cov kuab tshuaj, thiab cov kuab tshuaj thiab cov kuab tshuaj hla ncaj qha los ntawm daim ntawv lim.
Qhov piv txwv daws teeb meem yog dab tsi?
Ib txhia piv txwv ntawm kev daws teeb meem yog dej ntsev, dej cawv, thiab qab zib yaj hauv dej. Hauv peb piv txwv ntawm ntsev dej, lub solute yog ntsev. Solvent: qhov no yog cov khoom uas ua rau feem ntau ntawm cov kev daws teeb meem . Qhov no yog ib feem uas lub solute yog yaj. Hauv peb piv txwv ntawm dej ntsev, qhov hnyav yog dej.
Pom zoo:
Dab tsi yog tus yam ntxwv ntawm txhua hom kev daws teeb meem?
Kev daws yog homogeneous sib xyaw. Ntau hom kev daws teeb meem muaj cov kuab tshuaj thiab cov tshuaj sib tov sib txawv. Cov tshuaj daws tau yaj hauv cov kuab tshuaj. Hauv kev daws teeb meem uas cov pa roj carbon dioxide tau yaj hauv dej, dej yog cov kuab tshuaj thiab cov pa roj carbon dioxide yog cov kuab tshuaj
Dab tsi yog qhov sib txawv tseem ceeb ntawm teeb meem tsom mus rau kev daws teeb meem thiab kev xav tsom mus rau kev daws?
Thaum kev ntxhov siab pom tau tias yog tswj tau, teeb meem tsom mus rau cov tswv yim daws teeb meem cuam tshuam nrog cov tsos mob ntawm kev puas siab puas ntsws, thaum nyob hauv qhov xwm txheej tsis txaus ntseeg, kev xav-tsom mus rau kev daws teeb meem cuam tshuam nrog cov tsos mob tsawg dua
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AKA pob txuv vulgaris- Cov teeb meem ntawm daim tawv nqaij ua rau mob ntev ntawm cov qog sebaceous los ntawm khaws cia tso zis thiab Propionbacterium acnes, lub sijhawm tshawb fawb rau cov kab mob pob txuv. Qhov mob ntawm daim tawv nqaij qhuav, tawv nqaij vim tsis muaj lossis tsis muaj sebum uas tshwm sim los ntawm cov laus thiab los ntawm qhov txias
Qhov kev tshawb xav dab tsi yog kev daws teeb meem kev kho mob los ntawm?
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