Yuav ua li cas dej yog universal hnyav?
Yuav ua li cas dej yog universal hnyav?

Video: Yuav ua li cas dej yog universal hnyav?

Video: Yuav ua li cas dej yog universal hnyav?
Video: Yuav ua li cas thiaj khiav dim lub ntiajteb no 2024, Kaum ib hlis
Anonim

Dej muaj peev xwm ntawm dissolving ntau yam khoom sib txawv, uas yog vim li cas nws yog xws li ib tug zoo kuab tshuaj . Thiab, dej hu ua " universal kuab tshuaj "vim nws dissolves ntau tshaj li lwm yam kua. Qhov no tso cai rau cov dej molecule los ua attracted rau ntau lwm yam sib txawv ntawm molecules.

Nyob rau hauv tas li ntawd, yog vim li cas dej thiaj dissolve ntau yam khoom?

Dej yog hu ua universal hnyav vim ntau tshuaj yaj hauv dej dua li lwm yam tshuaj. Qhov no tau ua nrog polarity ntawm txhua tus dej molecule. Qhov no pab dej dissociate ionic compounds rau hauv lawv cov ions zoo thiab tsis zoo.

Tsis tas li ntawd, dej puas tuaj yeem yaj? Tej yam xws li ntsev, qab zib thiab kas fes yaj hauv dej. Lawv yog cov soluble. Lawv feem ntau yaj sai dua thiab zoo dua hauv dej sov lossis dej kub. Kua txob thiab xuab zeb yog insoluble, lawv yuav tsis yaj txawm nyob rau hauv dej kub.

Yog li ntawd, polarity ua li cas dej ua universal hnyav?

Dej yog hu ua universal kuab tshuaj vim muaj ntau yam tshuaj yaj hauv nws. Lwm yam khoom tseem ceeb ntawm dej yog tias nws yog polar , uas txhais tau hais tias ib sab ntawm lub molecule muaj ib tug tsis zoo nqi thiab lwm sab muaj ib tug zoo nqi. Dej polarity yog dab tsi ua rau ntau lwm yam khoom attracted rau lub dej molecule.

Yuav siv dej li cas los ua cov kuab tshuaj hauv ib puag ncig?

Dej tso cai rau cov tshuaj tiv thaiv rau qhov chaw vim nws tso cai rau cov tshuaj yaj yeeb txav mus los. Vim li no, dej yog siv los ua kuab tshuaj nyob rau hauv ntau lub lag luam uas tsim cov khoom xws li khoom noj, tshuaj, tshuaj chiv, tshuaj pleev ib ce, tshuaj tua kab, adhesives thiab ntawv. Nws kuj yog qee zaum siv los ua kuab tshuaj hauv mining.

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