Video: Yuav ua li cas koj paub yog hais tias ib qho tshuaj tiv thaiv yog decomposition?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A decomposition tshuaj tshwm sim thaum ib qho reactant tawg ua ob lossis ntau yam khoom. Nws tuaj yeem sawv cev los ntawm cov kab zauv dav dav: AB → A + B. Hauv kab zauv no, AB sawv cev rau cov reactant uas pib lub tshuaj tiv thaiv , thiab A thiab B sawv cev rau cov khoom ntawm cov tshuaj tiv thaiv.
Ib yam li ntawd, koj ua li cas thiaj paub tias qhov kev tshwm sim yuav tshwm sim lossis tsis?
Yog lub zog dawb ntawm tshuaj tiv thaiv yog negative, cov tshuaj tiv thaiv yog thermodynamically spontaneous raws li sau. Yog lub zog dawb ntawm tshuaj tiv thaiv yog positive, the tshuaj tiv thaiv yog tsis yog tus kheej.
Kuj Paub, qhov piv txwv ntawm cov tshuaj tiv thaiv decomposition yog dab tsi? A decomposition tshuaj tshwm sim thaum ib qho reactant tawg ua ob lossis ntau yam khoom. Qhov no tuaj yeem sawv cev los ntawm kab zauv dav dav: AB → A + B. Piv txwv ntawm cov tshuaj tiv thaiv decomposition suav nrog kev tawg ntawm hydrogen peroxide rau dej thiab oxygen, thiab kev tawg ntawm dej rau hydrogen thiab oxygen.
Ua raws li qhov no, koj yuav ua li cas paub yog tias kev sib xyaw ua ke yog combustion lossis decomposition?
Ib tug muaj pes tsawg leeg tshuaj tiv thaiv tsim ib yam khoom los ntawm ntau reactants. A decomposition tshuaj tsim ntau yam khoom los ntawm ib qho reactant. Cov tshuaj tiv thaiv combustion yog cov ua ke ntawm qee qhov sib xyaw nrog oxygen los ua oxides ntawm lwm cov khoom raws li cov khoom (txawm tias nitrogen atoms teb ua N 2).
Qhov piv txwv ntawm kev sib xyaw ua ke yog dab tsi?
Cov reactants, A thiab B, ua ke los tsim ib yam khoom tshiab, AB, uas yog ib txwm ua ke. Ib piv txwv ntawm a ua ke cov tshuaj tiv thaiv yog thaum hydrogen thiab chlorine teb tsim hydrochloric acid: Cov subscripts hauv tshuaj tshuaj tiv thaiv nyob rau hauv daim duab no xa mus rau lub xeev ntawm teeb meem.
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