Video: Dab tsi yog qhov exergonic thiab endergonic cov tshuaj tiv thaiv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Thaum muaj tshuaj tshuaj tiv thaiv siv qhov chaw zog yog coj los yog tso tawm. Hauv ib exergonic cov tshuaj tiv thaiv , lub zog raug tso tawm rau ib puag ncig. Cov ntawv cog lus raug tsim muaj zog dua li cov ntawv cog lus tau tawg. Hauv ib endergonicreaction , lub zog yog absorbed los ntawm cov puag ncig.
Xav txog qhov no, cov piv txwv ntawm endergonic thiab exergonic cov tshuaj tiv thaiv yog dab tsi?
Piv txwv ntawm exergonic cov tshuaj tiv thaiv suav nrog exothermic cov tshuaj tiv thaiv , xws li sib tov sodium thiab chlorine tomake lub rooj ntsev, combustion, thiab chemiluminescence (lub teeb yog theenergy uas tso tawm). Yog hais tias qhov kub thiab txias ntawm ib puag ncig increases, lub tshuaj tiv thaiv yog exothermic.
Ib yam li ntawd, nws txhais li cas los ua Endergonic? Ib endergonic tshuaj tiv thaiv (xws li photosynthesis) yog ib qho tshuaj tiv thaiv uas yuav tsum tau muaj zog tsav. Endergonic (los ntawm prefix endo-, muab los ntawm Greek lo lus ?νδον endon, "hauv", thiab lo lus Greek?ργον ergon, "ua haujlwm") txhais tau tias "absorbingenergy nyob rau hauv daim ntawv ntawm kev ua hauj lwm." Endergonic cov tshuaj tiv thaiv yog tsis raws cai.
Tib neeg kuj nug, qhov exergonic cov tshuaj tiv thaiv txhais li cas?
Ib exergonic cov tshuaj tiv thaiv hais txog a tshuaj tiv thaiv qhov twg zog yog tso tawm. Vim tias cov reactants poob zog (G txo qis), Gibbs dawb zog (ΔG) yog negative nyob rau qhov kub thiab txias. Cov no cov tshuaj tiv thaiv feem ntau ua tsis xav tau lub zog mus ntxiv, thiab yog li ntawd tshwm sim spontaneously.
Dab tsi yog qhov tseem ceeb ntawm kev muaj cov tshuaj tiv thaiv exergonic hauv lub cev?
Exergonic cov tshuaj tiv thaiv tso tawm lub zog uas yog khaws cia rau hauv daim ntawv cog lus ntawm cov molecules koom nrog hauv tshuaj tiv thaiv , thiab tso tawm spontaneously. Los ntawm muaj, nws tuaj yeem siv los ntawm cov tshuab sib txawv, txawm tias nws yog tus lub cev ormachinery, xws li lub tsheb, kom muaj zog rau lub hom phiaj muaj nuj nqi.
Pom zoo:
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 exergonic thiab endergonic cov tshuaj tiv thaiv?
Endergonic thiab exergonic cov tshuaj tiv thaiv Exergonic cov tshuaj tiv thaiv kuj hu ua spontaneous cov tshuaj tiv thaiv, vim hais tias lawv tuaj yeem tshwm sim yam tsis muaj qhov sib ntxiv ntawm lub zog. Cov tshuaj tiv thaiv nrog qhov zoo ∆G (∆G> 0), ntawm qhov tod tes, xav tau lub zog nkag thiab hu ua endergonic cov tshuaj tiv thaiv
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 qhov txawv ntawm cov tshuaj tiv thaiv exergonic thiab endergonic cov lus nug?
Exergonic cov tshuaj tiv thaiv muaj ionic bonds; endergonic cov tshuaj tiv thaiv muaj xws li covalent bonds. Nyob rau hauv exergonic cov tshuaj tiv thaiv, cov reactants muaj tshuaj zog tsawg dua cov khoom; nyob rau hauv endergonic cov tshuaj tiv thaiv, qhov opposite yog muaj tseeb. Exergonic kev cuam tshuam cuam tshuam nrog kev rhuav tshem cov ntawv cog lus; endergonic cov tshuaj tiv thaiv cuam tshuam nrog kev tsim cov ntawv cog lus
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