Video: Dab tsi yog qhov ua kom lub zog ntawm cov tshuaj tiv thaiv exothermic?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ua kom muaj zog kuj tseem yuav txhais tau tias yog qhov tsawg kawg nkaus zog yuav tsum tau pib tshuaj tshuaj tiv thaiv . Cov activation zog ntawm a tshuaj tiv thaiv feem ntau yog denoted los ntawm thiab muab nyob rau hauv units ntawm kilojoules ib mole. Ib exothermic tshuaj tiv thaiv yog tshuaj tshuaj tiv thaiv uas tso tawm zog nyob rau hauv daim ntawv ntawm lub teeb thiab tshav kub.
Ib yam li ntawd, tib neeg nug, dab tsi yog lub zog ua kom muaj zog rau cov tshuaj tiv thaiv endothermic?
Endothermic tshuaj tiv thaiv A tshuaj tiv thaiv profile suav nrog activation zog , uas yog qhov tsawg kawg nkaus zog xav tau los ntawm hais thaum lawv sib tsoo rau ib tshuaj tiv thaiv tshwm sim. Cov activation zog yog qhia raws li 'hump' nyob rau hauv kab, uas: pib ntawm lub zog ntawm cov reactants.
Dab tsi yog lub zog ua kom muaj zog rau cov tshuaj tiv thaiv? Cov activation zog rau pem hauv ntej tshuaj tiv thaiv yog tus nqi pub dawb zog uas yuav tsum tau ntxiv mus los ntawm lub zog theem ntawm cov reactants mus rau lub zog theem ntawm lub xeev kev hloov pauv.
Tom qab ntawd, cov tshuaj tiv thaiv endothermic puas muaj lub zog ua kom siab dua?
Ib endothermic tshuaj tiv thaiv ib txwm muaj lub zog ua kom ntau dua thiab tus nqi qeeb dua qhov tawm tsam exothermic tshuaj tiv thaiv . Kev nce hauv qhov kub thiab txias cuam tshuam rau tus nqi endothermic tshuaj tiv thaiv ntau tshaj li ntawm exothermic tshuaj tiv thaiv.
Puas muaj cov tshuaj tiv thaiv exothermic muaj lub zog ua kom muaj zog?
Tag nrho tshuaj tiv thaiv , suav nrog exothermic tshuaj tiv thaiv , xav tau kev ua kom muaj zog rau tau pib. Ua kom muaj zog xav tau kom reactants ua tau txav mus ua ke, kov yeej lub zog ntawm kev tawm tsam, thiab pib rhuav tshem kev sib raug zoo. 1. Cov exothermic tshuaj tiv thaiv tso tawm zog.
Pom zoo:
Yuav ua li cas yog endothermic thiab exothermic cov tshuaj tiv thaiv nyob rau hauv daim duab lub zog?
Nyob rau hauv cov ntaub ntawv ntawm endothermic cov tshuaj tiv thaiv, cov reactants nyob rau hauv qis zog theem piv rau cov khoom - raws li qhia nyob rau hauv lub zog daim duab hauv qab no. Nyob rau hauv cov ntaub ntawv ntawm ib tug exothermic cov tshuaj tiv thaiv, cov reactants yog nyob rau hauv ib tug siab zog theem piv rau cov khoom, raws li qhia hauv qab no nyob rau hauv lub zog daim duab
Vim li cas cov tshuaj tiv thaiv kev zom zaub mov hu ua hydrolysis cov tshuaj tiv thaiv?
Thaum lub sij hawm zom mov, piv txwv li, decompositionreactions zom cov zaub mov loj rau hauv cov me me los ntawm kev ntxiv cov dej molecules. Hom tshuaj no hu ua hydrolysis. Raws li dej absorbs heatenergy, qee lub zog yog siv los rhuav tshem hydrogenbonds
Dab tsi yog qhov sib txawv tseem ceeb ntawm tshuaj lom neeg thiab cov tshuaj tiv thaiv nuclear Lub hlwb?
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Cov tshuaj tiv thaiv dab tsi yog qhov tshuaj tiv thaiv neutralization?
Neutralization yog ib hom tshuaj tiv thaiv nyob rau hauv uas muaj zog acid thiab muaj zog puag react nrog ib leeg los tsim dej thiab ntsev
Dab tsi yog tshuaj lom neeg cov tshuaj tiv thaiv thiab cov tshuaj tiv thaiv lub cev?
Qhov sib txawv ntawm cov tshuaj tiv thaiv lub cev thiab cov tshuaj tiv thaiv tshuaj yog muaj pes tsawg leeg. Hauv cov tshuaj tiv thaiv tshuaj, muaj kev hloov pauv ntawm cov tshuaj hauv nqe lus nug; nyob rau hauv ib qho kev hloov ntawm lub cev muaj qhov sib txawv ntawm qhov tsos, tsis hnov tsw, los yog cov duab yooj yim ntawm cov qauv ntawm cov teeb meem yam tsis muaj kev hloov pauv hauv cov ntsiab lus