Cov txheej txheem:

Lub cev thiab tshuaj hloov pauv li cas nrog piv txwv?
Lub cev thiab tshuaj hloov pauv li cas nrog piv txwv?

Video: Lub cev thiab tshuaj hloov pauv li cas nrog piv txwv?

Video: Lub cev thiab tshuaj hloov pauv li cas nrog piv txwv?
Video: Saib Mis paub Poj niam (hluas nkauj) tus yam ntxwv lub siab 2024, Kaum ib hlis
Anonim

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.

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