Video: Lub kaum sab xis ntawm ph3 yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov PH3 daim ntawv cog lus kaum Nws yuav yog li ntawm 90 degrees txij li nws muaj trigonal pyramidal molecular geometry (nws yuav tsis muaj tseeb vim tias tus khub ib leeg yuav thawb).
Tsis tas li ntawd, lub kaum sab xis zoo tshaj plaws hauv ph3 yog dab tsi?
Hauv ammonia sp3 hybridization tshwm sim. Yog li nws kev sib raug zoo yuav tsum yog 109 ° 28 '. Tab sis vim muaj ib leeg khub nws yog me ntsis tsawg. Yog li nws tau xav tias qhov PH 3 tseem yuav kwv yees li qub. Tab sis, nws tau pom nyob ib ncig ntawm 90 °.
Tom qab, lo lus nug yog, dab tsi yog qhov zoo ntawm ph3? Yog li cas PH 3 , ans yog sp3 nrog ib leeg khub soit yog pyramidal zoo li tus..
Kuj nug, dab tsi yog lub kaum sab xis ntawm phosphine?
Qauv ntawm Phosphine Cov daim ntawv cog lus H-P-H = 93°. Ntawm qhov tod tes, ammonia muaj pyramidal geometry nrog a daim ntawv cog lus ua 107.80. Yog li, peb pom tias ob qho tshuaj no muaj kev sib piv daim ntawv cog lus . Phosphorus yog tsawg dua electronegative dua nitrogen.
Vim li cas daim ntawv cog lus lub kaum sab xis ntawm pf3 ntau dua ph3?
Thaum lub daim ntawv cog lus ntawm PH 3 tsis muaj tseeb tshaj uas ntawm PF3 . Ob leeg PH 3 thiab PF3 arepyramidal nyob rau hauv cov duab. Cov daim ntawv cog lus yog ntau dua nyob rau hauv PF?3 duetolone khub- daim ntawv cog lus khub repulsion. Raws li flourine yog me me thiab ntau electronegative tshaj hydrogen, ua daim ntawv cog lus khub ntawm electrons mus rau F.
Pom zoo:
Cov kab lus hloov sab hauv cov ces kaum piav qhia txoj haujlwm ntawm ob lub kaum sab xis li cas?
Hloov sab hauv cov ces kaum yog tsim los ntawm ib tug transversal intersecting ob parallel kab. Lawv nyob nruab nrab ntawm ob qho tib si kab tab sis nyob rau sab nraud ntawm lub transversal, tsim ob khub (plaub tag nrho cov ces kaum) ntawm cov ces kaum sab hauv. Hloov cov ces kaum sab hauv yog congruent, txhais tau tias lawv muaj qhov sib npaug
Koj tuaj yeem ua pov thawj li cas 2 daim duab peb sab zoo sib xws siv lub kaum sab xis sab SAS zoo sib xws postulate?
SAS Similarity Theorem hais tias yog ob sab hauv ib daim duab peb sab yog proportional rau ob sab hauv lwm daim duab peb sab thiab lub kaum sab xis nyob rau hauv ob qho tib si congruent, ces ob daim duab peb sab zoo ib yam. Ib qho kev hloov pauv zoo sib xws yog ib lossis ntau qhov kev hloov pauv tsis tu ncua ua raws li kev dilation
Dab tsi yog txoj cai kaum rau lwm lub kaum sab xis?
Hloov cov ces kaum sab hauv yog tsim thaum lub transversal hla dhau ob kab. Lub kaum sab xis uas tsim nyob rau sab nraud ntawm lub transversal thiab sab hauv ob kab yog alternate sab hauv cov ces kaum. Lub theorem hais tias thaum cov kab sib npaug, qhov sib txawv sab hauv cov ces kaum sib npaug
Dab tsi yog qhov flux los ntawm lub voos xwmfab ntawm sab yog tias tus nqi ntawm Q yog ntawm ib qho ntawm nws lub ces kaum?
Raws li peb paub tias, tag nrho cov flux los ntawm tus nqi q yog q / ε 0 (Gauss txoj cai). Yog hais tias tus nqi yog nyob rau ntawm lub ces kaum ntawm lub voos xwmfab, ib co ntawm cov flux nkag mus rau hauv lub voos xwmfab thiab tawm los ntawm ib co ntawm nws lub ntsej muag. Tab sis qee qhov flux tsis nkag mus rau hauv lub voos xwmfab. Qhov 1/8th no yuav muab faib ua 3 ntu dua
Dab tsi yog kev sib raug zoo ntawm sab nrauv thiab sab hauv lub kaum sab xis ntawm daim duab peb sab?
Cov kaum sab hauv yog hu ua Sab hauv cov ces kaum. Cov lej ntawm cov kaum sab hauv ntawm daim duab peb sab yog ib txwm 180 degrees. Lub kaum sab nrauv yog lub kaum sab xis ntawm ib sab ntawm ib qho duab, thiab ib txoj kab txuas ntxiv los ntawm sab tom ntej. Qhov sib npaug ntawm lub kaum sab nrauv thiab nws lub kaum sab hauv uas nyob ib sab kuj yog 180 degrees