Dab tsi yog qhov txawv ntawm hydration zog thiab kev daws lub zog?
Dab tsi yog qhov txawv ntawm hydration zog thiab kev daws lub zog?

Video: Dab tsi yog qhov txawv ntawm hydration zog thiab kev daws lub zog?

Video: Dab tsi yog qhov txawv ntawm hydration zog thiab kev daws lub zog?
Video: Dab tsi yog qhov tseeb txog cov tshuaj tiv thaiv COVID-19? 2024, Kaum ib hlis
Anonim

Kev daws teeb meem , yog tus txheej txheem ntawm attraction andassociation ntawm molecules ntawm ib tug hnyav nrog molecules los yog ions ntawm asolute. Raws li ions yaj hauv a Cov kuab tshuaj lawv kis tawm thiab ua ib puag ncig los ntawm cov kuab tshuaj molecules. Dej dej yog cov txheej txheem ntawm kev nyiam thiab kev koom ua ke ntawm molecules ntawm dej nrog molecules lossis ions ntawm cov kuab tshuaj.

Xav txog qhov no, qhov txawv ntawm lattice zog thiab hydration zog yog dab tsi?

Cov Qhov sib txawv ntawm lattice zog thiab hydrationenergy yog tias lattice zog yog tus nqi ntawm lub zog tso thaum mole ntawm tus daim kab xev isformed los ntawm infinitely cais ions whereas hydrationenergy yog tus nqi ntawm lub zog tso thaum a daim kab xev yog cais ua ions los ntawm kev daws hauv dej.

Tsis tas li ntawd, lub zog hydration txhais li cas? Dej zog (kuj hydration enthalpy ) yog tus nqi ntawm zog tso tawm thaum ib mole ntawm ionsundergo hydration uas yog ib rooj plaub tshwj xeeb ntawm kev daws teeb meem. Nws yog ib rooj plaub tshwj xeeb ntawm dissolution ntawm zog , nrog cov kuab tshuaj dej.

Yog li ntawd, kev daws lub zog yog dab tsi?

Cov zog ntawm kev daws teeb meem yog tus nqi ntawm zog txuam nrog dissolving ib tug solute nyob rau hauv ib tug hnyav. Yog tias nws yog tus lej zoo, cov txheej txheem dissolving yog endothermic; Yog hais tias tsis zoo, nws yog exothermic. Kev daws teeb meem yog cov txheej txheem ntawm reorganizing hnyav thiab solute molecules intosolvationcomplexes.

Dab tsi yog qhov kev sib raug zoo ntawm hydration zog thiab lattice zog?

Dej zog yog tus nqi ntawm lub zog tso tawm rau tawg ib mole ntawm siv lead ua daim kab xev nyob rau hauv nws constituent ions nyob rau hauv dej. Qhov xav tau zog yog muab los ntawm dej li no lattice zog npe as hydration zog lwm yog lwm yam hnyav siv ces nws issolvation zog.

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