Video: Yuav ua li cas rau lub zog nyob rau hauv ib tug exothermic tshuaj tiv thaiv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib exothermic tshuaj tiv thaiv tshwm sim thaum lub zog siv los rhuav tshem cov ntawv cog lus hauv cov reactants (cov khoom pib) yog tsawg tshaj li qhov zog tso tawm thaum daim ntawv cog lus tshiab tau tsim nyob rau hauv cov khoom (cov khoom koj xaus nrog). Combustion yog ib qho piv txwv ntawm ib qho exothermic tshuaj tiv thaiv - Koj tuaj yeem hnov cov cua sov muab tawm yog tias koj tau ze dhau!
Ua li no, ua li cas rau lub zog tso tawm los ntawm cov tshuaj tiv thaiv exothermic?
Ib exothermic tshuaj tiv thaiv yog ib qho tso dag zog nyob rau hauv daim ntawv ntawm tshav kub los yog lub teeb. Hauv lwm yam cov tshuaj tiv thaiv , cov zog uas yuav tsum tau absorbed los rhuav cov bonds nyob rau hauv lub reactants, yog ntau tshaj qhov zog uas yog tso tawm thaum cov nyiaj tshiab hauv cov khoom raug tsim.
Ib tug kuj yuav nug, hom kev hloov hluav taws xob twg tshwm sim thaum muaj kev cuam tshuam endothermic? Kev piav qhia: Hauv ib endothermic tshuaj tiv thaiv , tshav kub yog absorbed thiab hloov dua siab tshiab rau hauv tshuaj zog . Thaum tshav kub kub yog qhov sib npaug ntawm molecular kinetic zog nyob rau hauv ib qho qauv, yog li kinetic zog yog hloov dua siab tshiab rau hauv tshuaj zog.
Tsuas yog li ntawd, puas yog cov tshuaj tiv thaiv exothermic nqus lub zog?
A tshuaj tiv thaiv hauv qhov twg zog tso tawm rau ib puag ncig yog hu ua ib exothermic tshuaj tiv thaiv . Vim cov tshuaj tiv thaiv tso los yog nqus zog , lawv cuam tshuam qhov kub ntawm lawv ib puag ncig. Exothermic tshuaj tiv thaiv cua sov lawv ib puag ncig thaum endothermic cov tshuaj tiv thaiv txias lawv.
Puas yog Boiling Dej endothermic lossis exothermic?
Peb txhua tus tuaj yeem txaus siab rau qhov ntawd dej tsis spontaneously boil ntawm chav tsev kub; xwb peb yuav tsum tau cua sov nws. Vim peb yuav tsum ntxiv cua sov, boiling dej yog ib txoj kev uas chemists hu endothermic . Kom meej meej, yog tias qee cov txheej txheem xav tau cua sov, lwm tus yuav tsum muab cov cua sov thaum lawv ua. Cov no yog hu ua exothermic.
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
Yuav ua li cas rau lub zog nyob rau hauv ib tug endothermic cov tshuaj tiv thaiv?
Cov tshuaj tiv thaiv kab mob endothermic tshwm sim thaum lub zog siv los rhuav tshem cov ntawv cog lus hauv cov reactants ntau dua li lub zog muab tawm thaum cov ntawv cog lus tsim hauv cov khoom. Qhov no txhais tau hais tias tag nrho cov tshuaj tiv thaiv yuav siv lub zog, yog li ntawd muaj qhov kub thiab txias hauv ib puag ncig
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Dab tsi yog tshuaj lom neeg cov tshuaj tiv thaiv thiab cov tshuaj tiv thaiv lub cev?
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