Cov txheej txheem:
Video: Ib qho piv txwv ntawm qhov nro ntawm qhov chaw yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Piv txwv ntawm qhov nro
Cov dej strides siv lub siab nto nro ntawm dej thiab ntev, hydrophobic ob txhais ceg los pab lawv nyob saum dej. Floating ib rab koob: Ib rab koob me me ua tib zoo muab tso rau hauv qhov nto ntawm dej txawm tias nws yog ob peb zaug li ntom li dej.
Nyob rau hauv no, dab tsi yog ib tug yooj yim txhais ntawm nto nro?
Txhais qhov nro nro .: lub attractiveness exerted rau ntawm nto cov molecules ntawm cov kua los ntawm lawv cov molecules hauv qab uas nyiam kos cov nto moleculesin mus rau tej yam ntawm cov kua thiab ua rau cov kua xav tias tus shapehaving qhov tsawg tshaj plaws nto cheeb tsam.
Tom qab ntawd, lo lus nug yog, dab tsi ua rau muaj qhov nro hauv dej piv txwv? Ntog nro nyob ntawm qhov tseem ceeb ntawm lub zog ntawm kev sib txuas ntawm cov khoom hauv cov kua uas tau muab thiab tseem muaj cov roj, khoom, lossis cov kua hauv kev sib cuag nrog nws. Cov molecules nyob rau hauv poob dej , rau piv txwv , sib nyiam ib leeg.
Hais txog qhov no, qhov nro ntawm qhov chaw thiab dab tsi ua rau nws?
Hauv cov kua-air interfaces, nto nro tshwm sim los ntawm ntau dua attraction ntawm cov kua molecules rau ib leeg (vim cohesion) dua rau cov molecules nyob rau hauv cov huab cua (vim toadhesion).
Dab tsi yog lwm lo lus rau saum npoo nro?
Synonyms . interfacial nto nro capillary kev ua interfacial nro capillarity lub cev tshwm sim.
Pom zoo:
Qhov txawv ntawm qhov xwm txheej thiab qhov chaw piv txwv yog dab tsi?
Nws yog qee zaum tsis meej pem nrog cov qauv ntawm qhov kev sim, feem ntau yog los ntawm omega (Ω), tab sis txawv: thaum lub sij hawm qhov chaw ntawm qhov kev sim muaj tag nrho cov txiaj ntsig tau, qhov chaw tshwm sim muaj tag nrho cov txiaj ntsig tau tshwm sim; tag nrho cov subsets ntawm cov qauv qhov chaw
Dab tsi yog qhov nro ntawm qhov chaw thiab dab tsi ua rau nws?
Nto nro yog qhov nyiam ntawm cov dej ntws mus rau hauv qhov tsawg kawg nkaus qhov chaw ua tau. Ntawm cov kua-cua sib cuam tshuam, qhov nro ntawm qhov chaw tshwm sim los ntawm kev nyiam ntawm cov kua molecules ntau dua rau ib leeg (vim kev sib koom ua ke) dua li cov molecules hauv huab cua (vim adhesion)
Dab tsi yog txhais los ntawm lub sij hawm dissociation thiab dab tsi yog ib qho piv txwv ntawm cov khoom uas dissociates?
Dissociation, nyob rau hauv chemistry, sib cais ntawm ib yam khoom mus rau hauv atoms los yog ions. Thermal dissociation tshwm sim ntawm qhov kub thiab txias. Piv txwv li, hydrogen molecules (H 2) dissociate rau hauv atoms (H) ntawm kub heev; ntawm 5,000 ° K txog 95% ntawm cov molecules hauv cov qauv ntawm hydrogen yog dissociated rau hauv atoms
Dab tsi yog qhov txawv ntawm instantaneous thiab nruab nrab ceev dab tsi yog qhov piv txwv loj tshaj ntawm kev ceev ceev?
Qhov nruab nrab ceev yog qhov ceev nruab nrab ntawm lub sijhawm. Instantaneous ceev yuav yog qhov ceev txhua qhov muab tam sim ntawd hauv lub sijhawm ntawd, ntsuas nrog lub ntsuas ntsuas lub sijhawm
Dab tsi yog qhov txawv ntawm microevolution thiab macroevolution Dab tsi yog qee qhov piv txwv ntawm txhua tus?
Microevolution vs. Macroevolution. Piv txwv ntawm cov kev hloov microevolutionary no yuav suav nrog kev hloov ntawm hom xim lossis loj. Macroevolution, piv txwv li, yog siv los hais txog kev hloov pauv ntawm cov kab mob uas tseem ceeb txaus uas, dhau sijhawm, cov kab mob tshiab yuav raug suav tias yog hom tshiab nkaus xwb