Cov txheej txheem:
Video: Puas yog kev sib xyaw ntsev thiab kua txob yog lub cev lossis tshuaj lom neeg?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Piv txwv li, sib tov ntsev thiab kua txob tsim ib yam tshiab yam tsis hloov lub tshuaj pleev ntawm ob qho tib si. Lawv kuj yog lub cev hloov vim lawv tsis ua hloov qhov xwm txheej.
Ntxiv rau qhov no, piv txwv ntawm cov khoom siv tshuaj lom neeg yog dab tsi?
Piv txwv ntawm cov khoom siv tshuaj muaj xws li flammability, toxicity, acidity, reactivity (ntau hom), thiab kub ntawm combustion. Hlau, piv txwv li, ua ke nrog oxygen nyob rau hauv lub xub ntiag ntawm dej los ua xeb; chromium tsis oxidize (Daim duab 2).
Tsis tas li ntawd, ice cream melting lub cev hloov? Kev hloov ntawm lub cev yog kev hloov nyob rau hauv ib yam khoom uas lub xeev los yog zoo li kev hloov tsis muaj tshuaj sau ntawv. Ice cream melting yog a lub cev thiab thim rov qab hloov vim nws yog ib qho khoom thiab lub hnub tshav kub ua rau nws yaj ua kua.
Kuj paub, dab tsi yog lub cev thiab tshuaj lom neeg lub cev muab piv txwv ntawm txhua tus?
Tus general khoom ntawm cov teeb meem xws li xim, ntom, hardness, yog piv txwv ntawm lub cev muaj zog . Cov khoom uas piav qhia txog yuav ua li cas cov tshuaj hloov mus rau hauv ib qho khoom sib txawv kiag li hu ua tshuaj muaj zog . Flammability thiab corrosion / oxidation kuj yog piv txwv ntawm tshuaj muaj zog.
Peb piv txwv ntawm kev hloov lub cev yog dab tsi?
Piv txwv ntawm Kev Hloov Lub Cev
- Crushing ib lub kaus poom.
- Melting ib lub thawv dej khov.
- Boiling dej.
- Sib tov xuab zeb thiab dej.
- Txhaum iav.
- Dissolving qab zib thiab dej.
- Txiav daim ntawv.
- Txiav ntoo.
Pom zoo:
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