Cov txheej txheem:
Video: Lub cev thiab tshuaj hloov pauv li cas nrog piv txwv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A tshuaj hloov tau los ntawm a tshuaj tiv thaiv ,thaum a hloov lub cev yog thaum tseem ceeb kev hloov cov ntawv tab sis tsis yog tshuaj tus kheej. Piv txwv ntawm tshuaj hloov pauv yog hlawv, ua noj, xeb, thiab rotting. Piv txwv ntawm kev hloov ntawm lub cev yog boiling, melting, freezing, thiab shredding.
Hauv qhov no, qhov piv txwv ntawm kev hloov pauv ntawm lub cev thiab tshuaj lom neeg yog dab tsi?
Melting thiab hlawv ntawm tswm ciab ciab yog ib qho piv txwv ntawm kev hloov pauv ntawm lub cev thiab tshuaj lom neeg . Teb: Hlawv ntoo yog a piv txwv ntawm kev hloov pauv ntawm lub cev thiab tshuaj lom neeg . Thaum ntoo raug hlawv cov dej noo tam sim no hloov mus rau vapor, nws yog ib qho hloov lub cev thaum nws hlawv thiab tsim CO2 yog a tshuaj hloov.
Tsis tas li ntawd, qhov piv txwv ntawm kev hloov lub cev yog dab tsi? Piv txwv ntawm hloov lub cev suav nrog kev hloov nyob rau hauv qhov loj los yog cov duab ntawm cov teeb meem. Hloov ntawm xeev-rau piv txwv , los ntawm cov khoom mus rau cov kua los yog los ntawm cov kua rau roj-yog tseem kev hloov ntawm lub cev . Qee cov txheej txheem uas ua rau kev hloov ntawm lub cev xws li txiav, khoov, dissolving, khov, boiling, thiab melting.
Ib yam li ntawd, tib neeg nug, dab tsi yog lub ntsiab lus ntawm lub cev thiab tshuaj hloov pauv?
A hloov lub cev yog hom hloov nyob rau hauv uas daim ntawv ntawm cov teeb meem yog hloov, tab sis ib yam khoom tsis hloov mus rau lwm yam. Contrast qhov no nrog a tshuaj hloov , hauv tshuaj bonds yog tawg los yog tsim kom cov khoom pib thiab xaus yog tshuaj sib txawv. Feem ntau tshuaj hloov pauv yog irreversible.
10 chemical pauv piv txwv yog dab tsi?
Kaum piv txwv ntawm kev hloov tshuaj lom neeg yog:
- Hlawv cov thee, ntoo, ntawv, kerosene, thiab lwm yam.
- Tsim cov curd los ntawm mis nyuj.
- Electrolysis ntawm dej los tsim hydrogen thiab oxygen.
- Rusting ntawm hlau.
- Kev tawg ntawm cracker.
- Ua noj ua haus.
- Kev zom zaub mov.
- Germination ntawm noob.
Pom zoo:
Cov tshuaj hloov pauv txawv li cas ntawm cov lus nug hloov lub cev?
Qhov txawv ntawm kev hloov tshuaj thiab lub cev yog dab tsi? Kev hloov tshuaj muaj xws li kev tsim cov khoom tshiab los ntawm kev rhuav tshem thiab rov kho cov atoms. Kev hloov ntawm lub cev feem ntau yog thim rov qab thiab tsis koom nrog kev tsim cov khoom sib txawv lossis cov khoom sib txuas
Dab tsi tsim cov roj siab thiab nws hloov pauv li cas nrog kev hloov pauv hauv kinetic zog?
Gas siab yog tshwm sim los ntawm kev sib tsoo ntawm cov khoom siv roj nrog rau sab hauv ntawm lub thawv thaum lawv sib tsoo nrog thiab tawm dag zog rau ntawm phab ntsa ntim. Tom qab ntawd cov roj yog cua sov. Raws li qhov kub ntawm cov roj nce, cov khoom tau nce lub zog kinetic thiab lawv cov nrawm nrawm
Cov kev hloov ntawm lub cev txawv ntawm cov tshuaj hloov pauv li cas muab ib qho piv txwv ntawm txhua tus?
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Lub ntsiab lus ntawm lub cev thiab tshuaj hloov pauv yog dab tsi?
Kev hloov tshuaj lom neeg tshwm sim los ntawm cov tshuaj tiv thaiv tshuaj, thaum lub cev hloov pauv yog thaum cov teeb meem hloov pauv tab sis tsis yog tshuaj lom neeg. Piv txwv ntawm kev hloov tshuaj lom neeg yog hlawv, ua noj, xeb, thiab rotting. Piv txwv ntawm kev hloov lub cev yog boiling, melting, khov, thiab shredding
Vim li cas evaporation ntawm dej yog hloov lub cev thiab tsis hloov tshuaj?
9 A. evaporation ntawm dej yog ib qho kev hloov ntawm lub cev thiab tsis yog tshuaj hloov vim nws yog ib qho kev hloov uas tsis hloov cov tshuaj xws li tshuaj hloov pauv, tsuas yog hloov lub cev. Plaub lub cev uas piav txog cov kua yog thaum nws khov, boils, evaporates, los yog condenses