Video: Cov dej polarity ua rau adhesion li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
2 Teb. Cov polarity ntawm dej molecules txhais tau tias molecules ntawm dej yuav nyob sib ze. Qhov no hu ua hydrogen bonding. Polarity ua dej ib qho hnyav hnyav, muab nws lub peev xwm los lo rau nws tus kheej (cohesion), lo rau lwm yam khoom ( adhesion ), thiab muaj qhov nro (vim hydrogen bonding).
Hauv qhov no, dab tsi ua rau adhesion hauv dej?
Adhesion yog qhov attraction ntawm molecules ntawm ib hom rau molecules ntawm ib yam txawv, thiab nws yuav ua tau heev muaj zog rau dej , tshwj xeeb tshaj yog nrog rau lwm cov molecules coj tus nqi zoo lossis tsis zoo. Qhov no yog vim qhov dej molecules muaj zog heev attracted rau ob sab ntawm lub raj dua rau ib leeg.
Ib tug kuj yuav nug, ua li cas dej lub polarity ua rau nws ib tug hnyav hnyav? Dej yog a zoo kuab tshuaj vim nws polarity . Qhov loj me me ntawm dej molecules feem ntau tso cai rau ntau yam dej molecules nyob ib puag ncig ib molecule ntawm solute. Ib feem tsis zoo dipoles ntawm cov dej yog attracted rau qhov zoo them cov ntsiab lus ntawm cov solute, thiab vice versa rau qhov zoo dipoles.
Yog li ntawd, polarity cuam tshuam rau dej li cas?
Dej polarity tso cai rau yaj lwm yam polar tshuaj yooj yim heev. Nyob qhov twg dej mus, nws nqa cov tshuaj yaj, cov zaub mov, thiab cov as-ham uas siv los txhawb cov khoom muaj sia. Vim lawv polarity , dej molecules muaj zog attracted rau ib leeg, uas muab dej ib tug siab nto nro.
Dab tsi yog peb qhov tshwj xeeb ntawm cov dej uas tshwm sim los ntawm nws cov polarity?
Cov dej molecules yog polar, yog li lawv tsim hydrogen bonds. Qhov no muab cov khoom tshwj xeeb rau dej, xws li qhov siab kub point , siab tshwj xeeb kub, cohesion, adhesion thiab ceev.
Pom zoo:
Cov polarity cuam tshuam li cas dej lub luag haujlwm ua cov kuab tshuaj?
Dej Cov Khoom Uas Muaj Zog. Dej, uas tsis yog tsuas yog dissolves ntau lub tebchaw tab sis kuj dissolves ntau tshaj li lwm yam kua, suav hais tias yog lub universal hnyav. Polar molecule nrog ib nrab-zoo thiab tsis zoo nqi, nws yooj yim dissolves ions thiab polar molecules
Vim li cas cov polarity ntawm cov dej ua rau nws zoo rau kev thauj khoom?
Dej lub polarity tso cai rau nws kom yaj lwm yam polars yooj yim heev. Thaum cov khoom polar yog muab tso rau hauv dej, qhov zoo kawg ntawm nws cov molecules yog attracted rau qhov tsis zoo kawg ntawm cov dej molecules, thiab vice versa. Nto nro ua rau cov dej los ua ke hauv cov tee ntau dua li nthuav tawm hauv ib txheej nyias
Cov khoom dab tsi ntawm cov dej tso cai rau cov dej los lo rau lub penny?
Kev sib koom tes
Dab tsi yog qhov tseem ceeb tshaj plaws uas yuav tsum muaj rau cov kua dej ntws hauv cov kav dej Dab tsi lwm yam cuam tshuam rau cov dej ntws?
Thaum ib qho kev quab yuam sab nraud yog exerted rau ntawm cov kua uas muaj, qhov tshwm sim siab yog kis sib npaug thoob plaws hauv cov kua. Yog li txhawm rau kom dej ntws, dej xav tau qhov sib txawv siab. Cov kav dej kuj tuaj yeem cuam tshuam los ntawm cov kua dej, cov yeeb nkab loj, qhov kub thiab txias (cov kav dej khov), cov kua dej ntom ntom
Vim li cas qhov adhesion ntawm dej yog qhov tseem ceeb rau lub neej?
Cov khoom nplaum ntawm cov dej tso cai rau cov dej tso cai rau cov dej molecules los lo rau cov dej uas tsis yog dej, uas ua rau qee qhov kev coj cwj pwm dej. Adhesion tso cai rau dej txav tawm tsam lub ntiajteb txawj nqus los ntawm cov nroj tsuag. Capillary nkaus vim yog adhesion tso cai rau cov ntshav txav los ntawm cov hlab ntsha me me hauv qee lub cev tsiaj