Qhov Tseem Ceeb Qhov txawv - Kev sib xyaw vs Decomposition Reaction
Cov tshuaj tiv thaiv tshuaj yog kev hloov pauv ntawm ib lossis ntau cov tshuaj sib txuas rau hauv ib lossis ntau yam khoom sib txawv, hloov tus kheej ntawm cov tshuaj lom neeg. Cov khoom pib ntawm cov tshuaj tiv thaiv tshuaj hu ua reactant thiab cov khoom sib xyaw ua ke hu ua cov khoom. Kev tawg ntawm cov tebchaw lossis kev sib xyaw ua ke ntawm cov tebchaw thiab tsim cov khoom sib txuas tshiab yuav tshwm sim thaum lub sijhawm cov txheej txheem tshuaj lom neeg vim tias cov khoom sib txuas ntawm cov atoms ntawm cov khoom sib txuas tau tawg thiab tsim los ntawm kev sib txawv. Cov tshuaj lom neeg muaj peev xwm muab faib ua ob peb pawg dav. Cov tshuaj tiv thaiv Redox lossis oxidation-txo cov tshuaj tiv thaiv yog qhov tseem ceeb heev ntawm lawv. Cov tshuaj tiv thaiv oxidation thiab txo qis yog hu ua electron hloov cov tshuaj tiv thaiv vim tias cov hluav taws xob ntawm cov reactants raug xa los ntawm ib qho chaw mus rau lwm qhov kom ua rau cov tshuaj tiv thaiv. Hauv cov tshuaj tiv thaiv redox, ob qhov kev sib piv sib luag, uas yog hu ua ib nrab-reactions, tshwm sim tib lub sijhawm. Cov kev cuam tshuam ib nrab no qhia txog kev hloov ntawm electrons. Los ntawm kev ntsuas qhov ib nrab ntawm cov tshuaj tiv thaiv no, ib tus tuaj yeem kwv yees tag nrho cov tshuaj tiv thaiv uas tau tshwm sim thaum kawg. Kev sib xyaw ua ke thiab cov tshuaj tiv thaiv decomposition yog ob yam loj ntawm cov tshuaj tiv thaiv redox. Qhov sib txawv tseem ceeb ntawm kev sib xyaw ua ke thiab cov tshuaj tiv thaiv decomposition yog cov tshuaj tiv thaiv kev sib xyaw ua ke muaj kev sib xyaw ua ke ntawm cov tshuaj reactants los muab ib yam khoom thaum cov tshuaj tiv thaiv decomposition cuam tshuam nrog kev tawg ntawm ib qho kev sib xyaw rau hauv ob lossis ntau yam khoom.
Kev sib xyaw ua ke yog dab tsi?
Cov tshuaj tiv thaiv kev sib xyaw ua ke, tseem hu ua cov tshuaj tiv thaiv synthesis, yog cov tshuaj tiv thaiv uas cov tshuaj reactant sib xyaw ua ke los tsim cov khoom sib txawv raws li cov khoom. Nyob rau hauv lwm yam lus, cov tshuaj tiv thaiv ntawm yooj yim molecules ua rau ib tug complex molecule. Qee lossis tag nrho cov kev sib txuas ntawm cov atoms ntawm cov khoom sib txuas tau tawg; Nyob rau tib lub sijhawm, atoms yuav sib xyaw ua ke los tsim cov khoom siv tshiab, uas yog cov khoom. Hauv cov tshuaj tiv thaiv decomposition, tib lub reactant ua raws li cov khoom pib rau ob qho tib si ib nrab cov tshuaj tiv thaiv. Tsis zoo li hauv cov tshuaj tiv thaiv decomposition, ib nrab cov tshuaj tiv thaiv hauv kev sib xyaw ua ke muaj cov reactants sib txawv los pib nrog. Kev sib xyaw cov tshuaj tiv thaiv ua rau ib yam khoom. Hauv qab no yog ib qho piv txwv uas yuav muab tau raws li combustion reactions.
Piv txwv li, thaum Aluminium (Al) muab tso rau hauv cov kua bromide (Br 2) cov tshuaj tiv thaiv ua ke tshwm sim thiab ua rau Aluminium bromide (AlBr 3). Ntawm no, tus lej oxidation tau nce hauv Al thiab txo qis hauv Br. Yog li, nws yog cov tshuaj tiv thaiv redox thiab yog cov tshuaj tiv thaiv ua ke txij li ob lub reactants tau tshwm sim los muab ib qho khoom tshwj xeeb.
Daim duab 01: Kev sib xyaw ua ke
Dab tsi yog Decomposition Reaction?
Cov tshuaj tiv thaiv decomposition yog lwm cov tshuaj tiv thaiv tseem ceeb hauv qeb ntawm cov tshuaj tiv thaiv redox. Nws yog qhov tseem ceeb ntawm kev sib xyaw ua ke cov tshuaj tiv thaiv. Cov tshuaj tiv thaiv decomposition yog cov tshuaj tiv thaiv uas cov tshuaj reactant tawg mus rau hauv cov khoom. Ntawm no, ib nrab-reactions tshwm sim nyob rau tib lub sij hawm raws li cov tshuaj tiv thaiv oxidation thiab txo cov tshuaj tiv thaiv. Tab sis tsis zoo li hauv kev sib xyaw ua ke, cov reactant rau ob qho tib si ib nrab cov tshuaj tiv thaiv yog tib yam hauv cov tshuaj tiv thaiv decomposition. Cov tshuaj tiv thaiv decomposition ua rau ntau yam khoom.
Nyob hauv electrolysis ntawm dej, thaum ncaj qha tam sim no dhau los ntawm dej, dej molecules decomposed muab oxygen thiab hydrogen gases. Ntawm no, tus lej oxidation yog nce hauv oxygen atom thiab txo qis hauv hydrogen atom. Li no, nws yog cov tshuaj tiv thaiv redox thiab cov tshuaj tiv thaiv decomposition vim kev tawg ntawm cov dej molecules rau oxygen thiab hydrogen gases.
Daim duab 02: Kev sib xyaw ua ke vs Decomposition
Dab tsi yog qhov sib txawv ntawm Kev Sib Txuas thiab Kev Sib Tham Decomposition?
Kev sib xyaw vs Decomposition Reaction |
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| Ob lossis ntau dua reactant compounds koom nrog kev sib xyaw ua ke. | Ib qho sib xyaw ua ke koom nrog cov tshuaj tiv thaiv decomposition. |
| khoom | |
| Kev sib xyaw ua ke tshwm sim hauv ib yam khoom. | Decomposition tshwm sim ua rau ntau yam khoom. |
| Ib Nrab Reactions | |
| Hauv kev sib xyaw ua ke, ob qhov kev cuam tshuam ib nrab muaj ob qhov sib txawv pib molecules. | Nyob rau hauv cov tshuaj tiv thaiv decomposition, ib qho molecule ua raws li cov khoom pib rau ob qho kev tawm tsam ib nrab. |
| Tshuaj Bonds | |
| Kev sib xyaw ua ke ua rau kev sib txuas ntawm atoms los tsim cov khoom kawg nkaus xwb. | Nyob rau hauv cov tshuaj tiv thaiv decomposition, tshuaj bonds tau tawg ua ob los yog ntau tshaj cov khoom kawg. |
| Molecules | |
| Kev sib xyaw ua ke ua rau cov molecules yooj yim los ua thiab tsim cov molecules complex. | Decomposition cov tshuaj tiv thaiv ua rau cov molecules complex kom tawg mus rau hauv cov molecules yooj yim. |
Summary – Kev sib xyaw vs Decomposition Reaction
Redox cov tshuaj tiv thaiv yog ib feem ntawm lub ntiaj teb nyob ib puag ncig peb vim tias feem ntau ntawm cov tshuaj tiv thaiv tseem ceeb yog cov tshuaj tiv thaiv redox. Kev sib xyaw ua ke thiab cov tshuaj tiv thaiv decomposition yog cov tshuaj tiv thaiv yooj yim uas sib txawv ntawm ib leeg. Qhov sib txawv tseem ceeb ntawm kev sib xyaw ua ke thiab cov tshuaj tiv thaiv decomposition yog cov tshuaj tiv thaiv kev sib xyaw ua ke muaj kev sib xyaw ua ke ntawm ob lossis ntau dua reactant molecules los ua ib qho khoom kawg thaum cov tshuaj tiv thaiv decomposition cuam tshuam nrog kev tawg ntawm ib qho molecule rau hauv ob lossis ntau cov khoom.
