Video: Hom tshuaj tiv thaiv twg yog Endergonic?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Piv txwv ntawm cov tshuaj tiv thaiv endergonic muaj xws li cov tshuaj tiv thaiv endothermic, xws li photosynthesis thiab melting ntawm cov dej khov rau hauv cov kua dej. Yog tias kub ntawm ib puag ncig txo qis, cov tshuaj tiv thaiv yog endothermic.
Ib sab ntawm qhov no, puas yog cov tshuaj tiv thaiv exergonic lossis endergonic?
Exergonic cov tshuaj tiv thaiv kuj hu ua spontaneous cov tshuaj tiv thaiv , vim lawv tuaj yeem tshwm sim yam tsis muaj qhov sib ntxiv ntawm lub zog. Cov tshuaj tiv thaiv nrog rau qhov zoo ∆G (∆G> 0), ntawm qhov tod tes, xav tau lub zog nkag thiab hu ua endergonic cov tshuaj tiv thaiv.
Tsis tas li ntawd, puas endergonic cov tshuaj tiv thaiv nce entropy? Endergonic cov txheej txheem yog txuas nrog exergonic sawv daws yuav tsim cov tshuaj tiv thaiv uas yog tag nrho exergonic. Li no tag nrho cov txheej txheem muaj nyob rau hauv kawg ib tug zoo entropic zog, thiab ua rau ib tug nce hauv entropy rau qhov system. Qhov no yog hu ua Txoj Cai Thib Ob ntawm Thermodynamics. ΔG = 0.
Ntxiv mus, puas yog Endergonic tib yam li endothermic?
Exo/ Endothermic sawv cev rau cov txheeb ze hloov pauv hauv tshav kub / enthalpy hauv ib qho system, whereas Exer / Endergonic yog hais txog kev hloov pauv ntawm kev hloov pauv ntawm lub zog dawb ntawm lub cev.
Endergonic txheej txheem yog dab tsi?
Ib endergonic cov tshuaj tiv thaiv (xws li photosynthesis) yog cov tshuaj tiv thaiv uas xav tau lub zog los tsav. Endergonic cov tshuaj tiv thaiv tsis yog tshwm sim. Qhov kev nce qib ntawm cov tshuaj tiv thaiv yog qhia los ntawm kab. Kev hloov ntawm Gibbs dawb zog (ΔG) thaum lub sij hawm ib endergonic cov tshuaj tiv thaiv yog tus nqi zoo vim tias lub zog tau txais (2).
Pom zoo:
Hom tshuaj tiv thaiv twg yog qhov kub hnyiab ntawm cov nkev?
Kev piav qhia: thaum methane (natural gas) reacts nrog oxygen, qhov tshwm sim yog carbon di-oxide thiab dej, nrog rau cov cua sov, yog li ua rau exothermic cov tshuaj tiv thaiv
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
Hom tshuaj twg pom nyob rau hauv cov khoom ntawm cov tshuaj tiv thaiv decomposition?
Cov tshuaj tiv thaiv decomposition tshwm sim thaum ib qho reactant tawg mus rau hauv ob lossis ntau yam khoom. Qhov no tuaj yeem sawv cev los ntawm kev sib npaug dav: AB → A + B. Cov piv txwv ntawm cov tshuaj tiv thaiv decomposition muaj xws li kev tawg ntawm hydrogen peroxide rau dej thiab oxygen, thiab kev tawg ntawm cov dej mus rau hydrogen thiab oxygen
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