Video: Yuav ua li cas yog ib qho piv txwv ntawm exergonic cov tshuaj tiv thaiv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib exergonic cov tshuaj tiv thaiv hais txog a tshuaj tiv thaiv qhov twg lub zog tawm. Cov piv txwv ntawm kev ua txhaum cai tshwm sim nyob rau hauv peb lub cev yog cellular respiration: C6H12O6 (glucose) + 6 O2 -> 6 CO2 + 6 H2O no tshuaj tiv thaiv tso tawm lub zog uas yog siv rau kev ua haujlwm ntawm tes.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog ib qho piv txwv ntawm cov tshuaj tiv thaiv endergonic?
Piv txwv ntawm endergonic cov tshuaj tiv thaiv suav nrog kev kub siab cov tshuaj tiv thaiv , xws li photosynthesis thiab thev naus laus zis ntawm cov dej khov rau hauv cov dej ua kua.
Tsis tas li ntawd, dab tsi yog qhov exergonic thiab endergonic cov tshuaj tiv thaiv? Hauv ib endergonic cov tshuaj tiv thaiv , lub zog yog absorbed los ntawm ib puag ncig. Cov no piav qhia exergonic thiab endergonicreactions Thaum lub zog tso tawm los yog absorbed yog tshav kub zog. In ib qho exothermic tshuaj tiv thaiv qhov kub ntawm cov puag ncig nce. Hauv ib qho endothermic tshuaj tiv thaiv qhov kub ntawm qhov chaw ib puag ncig txo qis.
Xav txog qhov no, dab tsi yog exergonic cov tshuaj tiv thaiv hauv biology?
Ib exergonic cov tshuaj tiv thaiv (xws li cellularrespiration) yog a tshuaj tiv thaiv uas poob zog thaum cov txheej txheem ntawm lub tshuaj tiv thaiv . Ua kom muaj zog (1) catalyzes tshuaj tiv thaiv tshwm sim nyob rau hauv ib tug spontaneous yam.
Dab tsi yog qhov txawv ntawm exergonic thiab exothermic?
Hauv kev xaus, whereas, ib kev ua haujlwm cov tshuaj tiv thaiv txhais tau hais tias cov tshuaj tiv thaiv yog tus kheej, ib exothermic cov tshuaj tiv thaiv tsis muaj dab tsi ua nrog spontaneity, tab sis hais tias lub zog tawm mus rau ib puag ncig. Rau ib exothermic cov tshuaj tiv thaiv, ΔH<0.
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
Ib qho piv txwv ntawm oxidation txo cov tshuaj tiv thaiv yog dab tsi?
Nyob rau hauv ib qho oxidation-txo, los yog redox, cov tshuaj tiv thaiv, ib lub atom los yog compound yuav nyiag electrons los ntawm lwm lub atom los yog compound. Ib qho piv txwv classic ntawm cov tshuaj tiv thaiv redox yog xeb. Thaum xeb tshwm sim, oxygen steals electrons los ntawm hlau. Oxygen tau txo qis thaum hlau tau oxidized
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
Qhov twg yog ib qho piv txwv ntawm cov tshuaj tiv thaiv?
Cov tshuaj tiv thaiv tshuaj tshwm sim thaum ib lossis ntau cov tshuaj hloov pauv mus rau ib lossis ntau lwm yam tshuaj. Piv txwv li: hlau thiab oxygen sib xyaw ua kom xeb. vinegar thiab ci dej qab zib combining ua sodium acetate, carbon dioxide thiab dej