Dab tsi yog kev siv cov catalyst?
Dab tsi yog kev siv cov catalyst?

Video: Dab tsi yog kev siv cov catalyst?

Video: Dab tsi yog kev siv cov catalyst?
Video: Qhia saib yus tus hlub lub xov tooj seb nws kov txog dab tsi thaum yus nyob deb 2024, Kaum ib hlis
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Cov siv ntawm a catalyst yog los hloov qhov nrawm ntawm cov tshuaj tiv thaiv tshuaj los ntawm availing lwm txoj hauv kev uas yuav tsum tau ua kom qis zog dua li qhov qub. Nyob rau hauv thiaj li ua ntau reactant molecules tuaj yeem hla qhov barrier qis thiab muab cov khoom.

Hais txog qhov no, dab tsi yog qhov piv txwv ntawm catalyst?

Ob lub molecules ntawm hydrogen peroxide yuav tsim ob lub molecules ntawm dej thiab ib lub molecule ntawm oxygen. A catalyst Cov poov tshuaj permanganate tuaj yeem siv los ua kom cov txheej txheem no. Cov catalytic converter nyob rau hauv ib lub tsheb muaj platinum, uas ua hauj lwm raws li ib tug catalyst hloov cov pa roj carbon monoxide, uas yog tshuaj lom, mus rau carbon dioxide.

Dab tsi yog lub luag haujlwm ntawm catalyst hauv tshuaj tiv thaiv? A catalyst yog ib yam khoom uas yuav muab ntxiv rau a tshuaj tiv thaiv kom nce tshuaj tiv thaiv tus nqi yam tsis tau txais kev noj haus hauv cov txheej txheem. Catalysts feem ntau ceev a tshuaj tiv thaiv los ntawm kev txo cov kev ua kom lub zog los yog hloov cov tshuaj tiv thaiv tshuab. Enzymes yog cov proteins uas ua raws li catalysts hauv biochemical cov tshuaj tiv thaiv.

Ua raws li qhov kev pom no, catalysts ua haujlwm li cas?

A catalyst ua haujlwm los ntawm kev muab txoj hauv kev hloov pauv rau cov khoom siv tshuaj tiv thaiv. Tus nqi ntawm cov tshuaj tiv thaiv yog nce ntxiv raws li txoj kev lwm txoj hauv kev no muaj lub zog ua kom qis dua li cov tshuaj tiv thaiv txoj kev tsis kho los ntawm cov catalyst . Lub disproportionation ntawm hydrogen peroxide tsim dej thiab oxygen, raws li qhia hauv qab no.

Dab tsi yog qhov zoo catalyst?

Cov hlau zoo li platinum thiab nickel ua zoo catalysts vim tias lawv adsorb muaj zog txaus los tuav thiab qhib cov reactants, tab sis tsis yog li ntawd cov khoom tsis tuaj yeem tawg.

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