Video: Yuav ua li cas thaum muaj tshuaj lom neeg lossis lub cev hloov pauv?
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.
Tsis tas li ntawd, yuav ua li cas thaum muaj kev hloov tshuaj?
Hauv ib tshuaj cov tshuaj tiv thaiv, tsuas yog cov atoms tam sim no hauv cov reactants tuaj yeem xaus rau hauv cov khoom. Tsis muaj cov atom tshiab tsim, thiab tsis muaj atoms raug puas tsuaj. Hauv ib tshuaj tshuaj tiv thaiv, reactants sib cuag, bonds ntawm atoms nyob rau hauv reactants tawg, thiab atoms rearrange thiab tsim tshiab bonds los ua cov khoom.
Ib yam li ntawd, ib yam dab tsi puas tuaj yeem hloov pauv lub cev thiab tshuaj lom neeg? A hloov tau tsi be ob lub cev thiab tshuaj , mas Kev hloov pauv ntawm lub cev thiab tshuaj muaj peev xwm tshwm sim ib txhij. Qhov no yog dab tsi tshwm sim nrog lub tswm ciab hlawv: lub wax yog melting, uas yog ib tug hloov lub cev , thiab nws combusting, uas yog a tshuaj hloov . A tshuaj hloov yog ib qho uas cov khoom tshiab tsim.
Ib tug kuj yuav nug, puas yog decomposing lub cev los yog tshuaj hloov?
Decomposition , qhov sib txawv ntawm kev sib xyaw ua ke, suav nrog kev tawg ntawm ib yam khoom rau hauv ob lossis ntau yam sib txawv. Cov cim ntawm tshuaj hloov suav nrog kev hloov nyob rau hauv cov xim, kub, zus tau tej cov teeb, kev hloov nyob rau hauv tsw, thiab tsim ntawm gases.
Qhov twg yog cov khoom siv tshuaj lom neeg?
A chemical khoom yog ib yam ntawm cov khoom khoom uas yuav tshwm sim thaum lub sij hawm, los yog tom qab, a tshuaj tshuaj tiv thaiv; uas yog, txhua yam zoo uas tuaj yeem tsim los ntawm kev hloov cov khoom siv xwb tshuaj tus kheej. Lawv kuj tuaj yeem pab tau los txheeb xyuas cov khoom tsis paub lossis cais lossis ntxuav nws ntawm lwm yam khoom.
Pom zoo:
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