Cov txheej txheem:
Video: Cov txheej txheem ntawm kev tsim cov kev daws teeb meem yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A daws yog tsim thaum ib yam khoom hu ua thesolute "dissolves" rau hauv lwm yam khoom hu ua cov kuab tshuaj. Dissolving yog thaum lub solute lov los ntawm ib tug loj siv lead ua ntawm molecules rau ntau me me los yog ib tug neeg molecules. Lawv ua qhov no los ntawm rub tawm cov ions thiab tom qab ntawd ncig cov ntsev molecules.
Yog li ntawd, txoj kev daws teeb meem yog dab tsi?
Kev tsim ntawm a daws los ntawm ib tug solute thiab asolvent yog lub cev txheej txheem , tsis yog chemical. Solvation yog qhov txheej txheem nyob rau hauv uas solute hais yog surrounded bysolvent molecules. Thaum cov kuab tshuaj yog dej, lub txheej txheem hu ua hydration.
Tsis tas li ntawd, vim li cas thiaj tsim tau ib qho kev daws teeb meem ib txwm muaj? Entropy thiab Kev daws teeb meem . Lub enthalpychange uas nrog a txheej txheem tseem ceeb vim txheej txheem uas tso tawm ntau npaum li cas ntawm lub zog yuav tshwm sim spontaneously. Nyob rau hauv sib piv, gases muaj loj positiveentropies vim hais tias lawv cov molecules yog heev disordered thiab inconsistencies ntawm kev kub ceev.
Kuj kom paub, peb kauj ruam ntawm kev daws teeb meem yog dab tsi?
Taw qhia
- Kauj Ruam 1: Sib cais cov khoom ntawm cov kuab tshuaj los ntawm ib leeg.
- Kauj Ruam 2: Sib cais cov khoom hnyav ntawm ib leeg.
- Kauj Ruam 3: Muab cov kuab tshuaj thiab cov kuab tshuaj sib xyaw ua ke kom ua tiav.
Dab tsi yog qhov sib xyaw thiab kev daws teeb meem?
Tsis yog tag nrho sib tov yog kev daws teeb meem . A daws yog ib lo lus tshwj xeeb uas piav txog ib qho orhomogeneous sib tov ntawm ib tug solute, cov khoom raug tov, nyob rau hauv ib tug hnyav, cov khoom uas yog nyob rau hauv ntau dua nyob rau hauv uas lub solute dissolves. Tag nrho kev daws teeb meem yog sib tov vim nws yog ob lossis ntau yam khoom sib xyaw ua ke.
Pom zoo:
Cov txheej txheem ntawm lub teeb nyob ntawm cov tshuaj tiv thaiv yog dab tsi?
Lub luag haujlwm tag nrho ntawm cov tshuaj tiv thaiv lub teeb, thawj theem ntawm photosynthesis, yog hloov lub hnub ci zog rau hauv cov tshuaj siv hluav taws xob nyob rau hauv daim ntawv ntawm NADPH thiab ATP, uas yog siv nyob rau hauv lub teeb-yooj yim tshuaj tiv thaiv thiab roj sib sau ua ke ntawm qab zib molecules
Dab tsi yog cov txheej txheem uas tsim cov ntawv luam tshiab ntawm cov kab mob caj ces?
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Dab tsi yog qhov sib xyaw ua ke uas tsim cov hydrogen ions hauv kev daws teeb meem?
Kua qaub. compound uas tsim hydrogen ions hauv kev daws. puag. compound uas tsim hydroxide ions hauv kev daws. tsis pub
Dab tsi yog cov txheej txheem ntawm kev sib txuas monomers los tsim cov saw ntev?
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