Dipole moments tshwm sim thaum muaj kev sib cais ntawm tus nqi. Lawv tuaj yeem tshwm sim ntawm ob ions hauv daim ntawv cog lus ionic lossis nruab nrab ntawm cov atoms hauv covalent daim ntawv cog lus; Lub sijhawm dipole tshwm sim los ntawm qhov sib txawv hauv electronegativity. Qhov loj dua qhov sib txawv hauv electronegativity, qhov loj dua lub sijhawm dipole.
Yuav ua li cas thaum lub sijhawm dipole?
Dipole-dipole kev sib cuam tshuam tshwm sim thaum ib feem ntawm daim ntawv them nyiaj hauv ib lub molecule vim tias qhov tsis sib xws ntawm cov hluav taws xob hluav taws xob. Polar molecules ua ke kom qhov kawg ntawm ib lub molecule cuam tshuam nrog qhov tsis zoo kawg ntawm lwm cov molecule.
Vim li cas lub sijhawm dipole mus ntawm qhov tsis zoo mus rau qhov zoo?
qhia tias lub sijhawm dipole vector yog coj los ntawm tus nqi tsis zoo mus rau tus nqi zoo vim txoj haujlwm vector ntawm ib qho taw qhia tawm sab nraud los ntawm keeb kwm mus rau qhov ntawd. … Yog li, tus nqi ntawm p yog ywj siab ntawm kev xaiv ntawm qhov taw qhia siv, muab tag nrho cov nqi ntawm lub kaw lus yog xoom.
Lub sijhawm dipole qhia peb li cas?
Dipole lub sijhawm (μ) yog qhov ntsuas ntawm net molecular polarity, uas yog qhov loj ntawm tus nqi Q ntawm qhov kawg ntawm molecular dipole lub sij hawm qhov kev ncua deb r ntawm cov nqi. Dipole lub sij hawm qhia peb txog kev sib cais ntawm tus nqi hauv ib lub molecule. … Lub cim δ qhia txog tus nqi ib nrab ntawm ib tus neeg atom.
Dab tsi yog lub sijhawm piv txwv?
Lub sijhawm dipole tsuas yog qhov ntsuas ntawm qhov sib npaug ntawm cov molecule.… Polar molecules muaj qhov sib txawv loj hauv hluav taws xob (qhov kawg zoo thiab qhov tsis zoo), txwv tsis pub hu ua lub sijhawm dipole. Piv txwv li, ammonia (NHsub3) yog ib qho polar molecule.
