Video: Ib qho piv txwv ntawm kev sib koom ua ke hauv lub neej txhua hnub yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kev sib koom tes yog lub sij hawm rau molecules ntawm ib yam khoom ua ke. Ib qho ntawm feem ntau piv txwv yog dej beading rau ntawm ib tug hydrophobic nto. Xav txog dab tsi tshwm sim thaum koj poob ib kawg ntawm ib daim ntawv phuam rau hauv ib khob dej.
Cia li xav txog qhov no, qee qhov piv txwv ntawm kev sib koom ua ke hauv lub neej tiag tiag?
Qhov saum npoo nro uas tsim los ntawm cohesion ua rau nws ua tau rau cov khoom teeb kom ntab rau dej tsis muaj dab tsi (piv txwv li, dej strides taug kev dej ). Lwm cohesive khoom yog mercury. Mercury atoms muaj zog txaus nyiam rau ib leeg; lawv hlaws ua ke ntawm qhov chaw. Mercury sticks rau nws tus kheej thaum nws ntws.
Tsis tas li ntawd, cohesive rog muab piv txwv li cas? Lub sij hawm " cohesive rog " yog ib lo lus generic rau lub collective intermolecular rog (e.g., hydrogen bonding thiab van der Waals zog ) lub luag hauj lwm rau cov khoom vaj khoom tsev ntawm cov kua tiv thaiv kev sib cais. Tshwj xeeb, cov ntxim nyiam no zog nyob nruab nrab ntawm cov molecules ntawm tib yam khoom.
Qhov thib ob, qhov piv txwv ntawm adhesion hauv lub neej txhua hnub yog dab tsi?
Piv txwv ntawm Adhesion Qhov ntawd yog adhesion dej hauv qhov kev txiav txim: dej molecules lo rau cov nqi molecules hauv daim ntawv. Txhawm rau ua kom lawv nqus tau, cov ntaub so ntswg thiab daim ntawv tso quav yog tsim tshwj xeeb nrog cov kab nqaim uas txhawb dej kom "nce" rau lawv kom txog thaum lawv khiav tawm ntawm txoj kab mus sau.
Puas yog dej khov ua piv txwv ntawm kev sib koom ua ke?
Dej cov ntawv cog lus hydrogen kuj yog vim li cas nws daim ntawv ruaj khov, dej khov , tuaj yeem ntab ntawm nws daim ntawv ua kua. Qhov no txhais tau hais tias lawv muaj zog lossis muaj zog dua li dej sib koom ua ke zog. Ntsev thiab qab zib yog ob qho tib si polar, zoo li dej, yog li lawv yaj zoo heev hauv nws.
Pom zoo:
Dab tsi yog ib qho piv txwv ntawm cov khoom sib txuas ntawm kev sib npaug?
Kev rho tawm (Tsis yog Commutative) Tsis tas li ntawd, kev faib, kev sib xyaw ntawm cov dej num thiab cov lej sib npaug yog ob qho piv txwv zoo uas tsis yog kev sib txuas
Yuav ua li cas yog ib co piv txwv ntawm series circuits nyob rau hauv lub neej txhua hnub?
Feem ntau series Circuit Court nyob rau hauv lub neej txhua hnub yog lub teeb hloov. Ib lub voj voog yog ib lub voj uas ua tiav nrog kev sib txuas sib txuas xa hluav taws xob los ntawm lub voj. Muaj ntau ntau hom series circuits. Computers, TVs thiab lwm yam khoom siv hluav taws xob hauv tsev txhua tus ua haujlwm los ntawm lub tswv yim yooj yim no
Cov kev hloov ntawm lub cev txawv ntawm cov tshuaj hloov pauv li cas muab ib qho piv txwv ntawm txhua tus?
Kev hloov tshuaj lom neeg tshwm sim los ntawm cov tshuaj tiv thaiv tshuaj, thaum lub cev hloov pauv yog thaum cov teeb meem hloov pauv tab sis tsis yog tshuaj lom neeg. Piv txwv ntawm kev hloov tshuaj lom neeg yog hlawv, ua noj, xeb, thiab rotting. Piv txwv ntawm kev hloov lub cev yog boiling, melting, khov, thiab shredding
Ib qho piv txwv ntawm kev sib koom tes hauv biology yog dab tsi?
Cov piv txwv classic suav nrog cov tsiaj nyeg-nyiam, tus tswv tsev-tus kab mob, thiab lwm yam kev sib tw ntawm cov tsiaj. Ib qho piv txwv yog coevolution ntawm flowering nroj tsuag thiab txuam pollinators (piv txwv li, muv, noog, thiab lwm yam kab)
Ib qho piv txwv ntawm kev sib koom ua ke yog dab tsi?
Piv txwv ntawm Cov Txheej Txheem Sib Txuas Cov txiaj ntsig tau zoo yog dov tsib, thiab qhov ntawd tuaj yeem tshwm sim ib zaug siv ib qho tuag. Tag nrho cov txiaj ntsig yog rau, txij li qhov tuag yog 6-sab. Yog li qhov tshwm sim ntawm dov ib tsib yog 1/6. Tag nrho cov txiaj ntsig yog 52 vim tias muaj 52 daim npav hauv ib lub lawj txheem