Video: Uas yog ib tug irreversible txheej txheem?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib txheej txheem irreversible yog a txheej txheem uas tsis tuaj yeem rov qab los ntawm ob qho tib si thiab cov cheeb tsam ib puag ncig rau lawv qhov qub. Ntawd yog, lub kaw lus thiab ib puag ncig yuav tsis rov qab mus rau lawv qhov qub yog tias cov txheej txheem thim rov qab.
Tsis tas li ntawd, dab tsi yog tus txheej txheem irreversible piv txwv?
Ib piv txwv ntawm ib txheej txheem irreversible yog aspontaneous tshuaj tiv thaiv, los yog ib qho tshuaj tiv thaiv electrochemical. Cov txheej txheem irreversible yog cov yam ntxwv ntawm cov dej ntws tawm nrog kev sib txhuam. ΔStag nrho > 0 txhais tau hais tias nosingle txheej txheem yog ua tau rau cov uas tag nrho cov entropydecreases.
Tsis tas li ntawd, vim li cas tag nrho cov txheej txheem tiag tiag yog irreversible? Ib txheej txheem irreversible nce lub entropy ntawm lub ntug. Vim tias entropy yog lub xeev muaj nuj nqi, qhov kev hloov pauv inentropy ntawm qhov system yog tib yam, txawm tias qhov txheej txheem isreversible los yog rov qab tsis tau . Piv txwv li, Joule expansion yog rov qab tsis tau vim thaum xub thawj lub system yog notuniform.
Kuj nug, dab tsi yog ib qho kev thim rov qab thiab irreversible?
Cov txheej txheem thim rov qab yog qhov zoo tagnrho txheej txheem uas yeej tsis tshwm sim, thaum lub irreversible txheej txheem yog lub ntuj txheej txheem uas feem ntau pom innature. Qhov no yog ib qho txheej txheem irreversible . Whereas thaum dej evaporates, nws tuaj yeem condensed hauv daim ntawv los nag. Qhov no yog txheej txheem thim rov qab.
Puas yog irreversible txheej txheem spontaneous?
Cov txheej txheem spontaneous yog irreversible vim tias lawv tuaj yeem thim rov qab tsuas yog los ntawm kev taug kev sib txawv kom rov qab mus rau lawv lub xeev qub. A txheej txheem thim rov qab tuaj yeem coj tib txoj kev rov qab mus rau nws qhov qub.
Pom zoo:
Koj tuaj yeem ua li cas yog tias koj tsis paub tias txheej twg yog nyob rau hauv cov txheej txheem rho tawm?
Koj tuaj yeem ua li cas yog tias koj tsis paub tias txheej twg yog nyob rau hauv cov txheej txheem rho tawm? Tso dej me me rau hauv lub caj dab ntawm qhov sib cais funnel. Ua tib zoo saib nws: yog tias nws tseem nyob hauv txheej txheej sab saud, txheej txheej ntawd yog txheej dej
Yuav ua li cas yog qhov tshwm sim uas ib tug poj niam dig muag xim uas yuav ib tug txiv neej uas tsis pom kev zoo yuav muaj xim dig muag me nyuam?
Yog tias tus poj niam uas muaj lub zeem muag zoo li no (heterozygous rau qhov muag tsis pom xim) yuav ib tug txiv neej ib txwm muaj (XY), cov xeeb ceem hauv qab no tuaj yeem xav tau hauv F2 tiam: ntawm cov ntxhais, 50% yog ib txwm muaj thiab 50% yog cov neeg nqa khoom rau cov kab mob; ntawm cov tub, 50% yog xim dig muag thiab 50% yog qhov pom kev zoo
Yuav ua li cas yog ib tug piv txwv ntawm ib tug rational naj npawb uas tsis yog ib tug tag nrho?
Tus lej "rational" yog qhov piv ntawm ob tus lej. Piv txwv li, cov hauv qab no yog cov lej rational, thiab tsis muaj leej twg yog tus lej: 1 / 2. 2 / 3
Dab tsi yog txheej txheem spontaneous thiab non-spontaneous txheej txheem?
Cov txheej txheem spontaneous yog ib qho uas tshwm sim yam tsis muaj kev cuam tshuam ntawm sab nraud. Ib txoj kev uas tsis yog tshwm sim yuav tsis tshwm sim yog tias tsis muaj kev cuam tshuam ntawm sab nraud
Cov txheej txheem twg yog txheej txheem endothermic?
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