Video: Koj qhia li cas yog tias qhov tshuaj tiv thaiv muaj qhov zoo delta S?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Thaum twg kwv yees seb lub cev los yog tshuaj lom neeg tshuaj tiv thaiv yuav muaj nce los yog txo nyob rau hauv entropy , saib cov theem ntawm hom tam sim no. Nco ntsoov 'Tshis Me Me' los pab koj qhia . Peb hais uas ' yog tias muaj entropy nce, Delta S yog qhov zoo 'thiab' yog tus entropy muaj txo, Delta S yog qhov tsis zoo.
Ib yam li ntawd, thaum Delta S zoo qhov no txhais tau tias muaj?
Dab tsi nws txhais tau tias : Yog ∆H yog negative, qhov no txhais tau tias hais tias cov tshuaj tiv thaiv muab tawm cua sov los ntawm reactants rau cov khoom. Qhov no yog qhov zoo. Yog hais tias koj yuav tau txais ib daim ntawv tso cai los ntawm lub tuam txhab S yog qhov zoo, qhov no txhais tau tias tias qhov kev tsis sib haum xeeb ntawm lub ntiaj teb yog nce los ntawm reactants mus rau cov khoom. Qhov no kuj yog qhov zoo thiab nws feem ntau txhais tau tias ua ntau molecules.
Kuj Paub, vim li cas Gibbs lub zog dawb yog xoom ntawm qhov sib npaug? Gibbs free zog yog ib qho kev ntsuas ntawm ntau npaum li cas "muaj peev xwm" cov tshuaj tiv thaiv tau tawm mus ua ib qho "ib yam dab tsi." Yog li ntawd yog hais tias tus lub zog dawb yog xoom , ces cov tshuaj tiv thaiv yog nyob rau kev sib npaug , tsis muaj haujlwm ntxiv tuaj yeem ua tiav. Tej zaum nws yuav yooj yim dua los pom qhov no siv lwm hom ntawv ntawm tus Gibbs free zog , xws li ΔG = -TΔS.
Nws txhais li cas thaum entropy zoo?
Enthalpy, Entropy , 2nd Law, and 3rd Law. Entropy , S, yog ib lub xeev muaj nuj nqi thiab yog ib qho kev ntsuas ntawm kev tsis sib haum xeeb los yog randomness. A zoo (+) entropy hloov txhais tau tias nce kev tsis meej pem. Lub qab ntuj khwb nyhav mus nce entropy . Txhua qhov kev hloov pauv tshwm sim nrog kev nce ntxiv entropy ntawm ntug.
Nws txhais li cas thaum Delta S tsis zoo?
Negative delta S (Δ S <0) yog qhov txo qis hauv entropy hais txog qhov system. Rau cov txheej txheem ntawm lub cev lub entropy ntawm lub ntug tseem nce mus, tab sis nyob rau hauv lub confines ntawm lub system tau kawm entropy txo.
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
Yuav ua li cas koj thiaj paub yog tias cov tshuaj tiv thaiv redox yog ib nrab?
VIDEO Ib yam li ntawd, redox ib nrab cov tshuaj tiv thaiv yog dab tsi? A ib nrab cov tshuaj tiv thaiv yog tus oxidation los yog txo tshuaj tiv thaiv ib feem ntawm a tshuaj tiv thaiv redox . A ib nrab cov tshuaj tiv thaiv yog tau los ntawm kev xav txog kev hloov hauv oxidation lub xeev ntawm tus kheej cov khoom koom nrog hauv tshuaj tiv thaiv redox .
Yam dab tsi tuaj yeem hloov pauv yog tias koj xav nce tus nqi ntawm cov tshuaj tiv thaiv tshuaj?
Cov yam ntxwv uas cuam tshuam rau cov tshuaj tiv thaiv yog: thaj tsam ntawm cov khoom reactant. concentration los yog siab ntawm ib tug reactant. kub. xwm ntawm cov reactants. muaj/tsis muaj catalyst
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