Polar molecules puas sib nyiam?
Polar molecules puas sib nyiam?

Video: Polar molecules puas sib nyiam?

Video: Polar molecules puas sib nyiam?
Video: Koj pom dab tsi? What do you see? 2024, Kaum ib hlis
Anonim

Peb paub tias polar molecules yog nyiam rau ib leeg los ntawm dipole-dipole attractions ntawm ib feem tsis zoo nqi ntawm ib tug polar molecule thiab tus nqi zoo ib nrab rau lwm polar molecule.

Tom qab ntawd, ib tug kuj nug, puas polar thiab nonpolar molecules nyiam?

Polar cov ntaub ntawv zoo li yuav ntau dua nyiam mus thiab muaj ntau soluble nyob rau hauv polar cov kuab tshuaj. Tsis muaj polar cov ntaub ntawv zoo li yuav nyiam mus thiab muaj ntau soluble nyob rau hauv tsis muaj polar cov ntaub ntawv. Polar molecules yog cov uas muaj thaj tsam ntawm qhov zoo thiab qhov tsis zoo. Dej yog ib qho piv txwv ntawm a polar khoom.

Kuj Paub, ib qho molecule puas tuaj yeem yog ob qho tib si polar thiab nonpolar? A molecule tau muaj polar bonds thiab tseem yuav tsis muaj polar . Yog tias polar daim ntawv cog lus sib npaug (lossis symmetrically) faib, daim ntawv cog lus dipoles tshem tawm thiab tsis tsim ib qho molecular dipole.

Ib yam li ntawd, yog vim li cas cov molecules nonpolar attracted rau ib leeg?

Nyob rau hauv cov ntaub ntawv ntawm tsis-polar molecules , dispersion rog lossis London rog muaj nyob nruab nrab ntawm lawv. Cov zog no yog induced dipole - induced dipole kev sib tshuam. Qhov tsis zoo (electrons) ntawm ib qho molecule nyiam qhov zoo (nucleus) ntawm lwm molecule . Yog li ntawd, ob lub dipoles yog induced.

Puas yog dej polar lossis nonpolar?

Dej (H2O) yog polar vim qhov khoov zoo ntawm cov molecule. Cov duab txhais tau hais tias feem ntau ntawm cov nqi tsis zoo los ntawm cov pa oxygen ntawm sab ntawm lub molecule thiab cov nqi zoo ntawm hydrogen atoms nyob rau sab nraud ntawm lub molecule. Qhov no yog ib qho piv txwv ntawm polar covalent chemical bonding.

Pom zoo: