Video: Nws hu li cas thaum cov khoom nyob hauv qhov chaw ruaj khov thiab vibrate ntawm qhov chaw?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Daim duab 2.1 The cov khoom nyob rau hauv ib qho khoom muaj tsau rau lawv cov neeg nyob ze. Lawv vibration nyob ib ncig ntawm lawv tsau txoj hauj lwm . Aerosols vam khom rau cov khoom khib nyiab, kua thiab roj thiab lawv coj li cas. Txoj kev xav uas piav txog qhov no yog Kinetic Theory of Matter.
Kuj nug, nyob rau hauv lub xeev twg yog cov hais tsuas muaj peev xwm vibrate nyob rau hauv ib tug taag txoj hauj lwm?
Khoom
Tom qab ntawd, lo lus nug yog, qhov chaw nruab nrab ntawm cov khoom hu ua dab tsi? nws yog hu ua intermolecular qhov chaw muaj nyob rau hauv nruab nrab ntawm qhov teeb meem.
Tib neeg kuj nug tias, cov khoom hauv cov khib nyiab ua li cas thaum lawv tawg tawm ntawm lawv txoj haujlwm ruaj khov?
Thaum a khov kho yog cua sov, nws particle nce zog thiab vibrate ntau dua. Vim qhov nce hauv vibrations, lub khov kho nthuav. Thaum melting point, lub cov khoom vibrate heev li lawv tawg tawm ntawm lawv txoj haujlwm . Nws yog nyob rau ntawm no tias a khov kho ua kua.
Dab tsi tshwm sim rau cov khoom thaum lub sij hawm sublimation?
- Sublimation . Cov txheej txheem uas cov khoom hloov pauv ncaj qha mus rau ib qho roj hu ua sublimation . Nws tshwm sim thaum lub cov khoom ntawm ib tug khoom absorb txaus zog kom kov yeej lub zog ntawm attraction ntawm lawv. Cov khoom carbon dioxide hloov ncaj qha mus rau lub xeev gaseous.
Pom zoo:
Vim li cas cov khoom muaj qhov ruaj khov thiab ntim?
1 Teb. Cov khoom muaj qhov ruaj khov thiab nyob hauv ib lub ntim ruaj khov. Vim hais tias cov khoom nyob rau hauv cov kua yog sib ze heev (Ntsuas ntxiv sib nrug tshaj nyob rau hauv cov khib nyiab) cov kua tsis yooj yim compress, yog li lawv ntim yog tsau. Gases kuj tuaj yeem ntws, yog li tuav cov duab ntawm lawv lub thawv tag nrho
Yuav ua li cas cov cell membrane tuav ruaj khov nyob rau hauv cov xwm txheej?
Lub cell membrane yog lipid bilayer uas tiv thaiv qhov kev nkag ntawm dej thiab ions. Qhov no tso cai rau cov hlwb kom tswj tau ntau dua ntawm sodium ions tawm sab nraud ntawm tes. Cells kuj tseem muaj cov ntsiab lus siab dua ntawm cov poov tshuaj ions thiab cov organic acids ntawm lawv sab hauv
Cov cuab yeej twg ua rau qhov sib txawv ntawm kev nce qib thiab nyob ruaj khov nthwv dej?
Txawm li cas los xij, ntawm lub nthwv dej nyob ruaj ruaj, txawm li cas los xij, thaum ob lub nthwv dej sib xyaw ua ke / superimpose rau ib leeg, lawv tsim cov nodes thiab anti-nodes raws li lub wavelength / zaus ntawm nthwv dej. Hais txog theem, ib nthwv dej loj tuaj yeem xav tias yog ib nthwv dej nkaus xwb, yog li tsis muaj theem sib txawv vim nws tsis koom nrog ob lossis ntau dua nthwv dej
Dab tsi yog qhov chaw nyob ruaj khov nyob rau hauv nyias txheej chromatography?
Lub silica gel (los yog alumina) yog qhov chaw nres tsheb. Cov theem nyob ruaj khov rau nyias txheej txheej chromatography kuj feem ntau muaj cov khoom siv fluorescesin UV teeb - vim li cas koj yuav pom tom qab. Lub mobilephase yog cov kuab tshuaj uas tsim nyog los yog sib tov ntawm cov kuab tshuaj
Yam khoom twg tsis muaj qhov ruaj khov thiab tsis muaj qhov ntim ruaj khov?
Cov theem ntawm cov teeb meem uas tsis muaj qhov ntim ruaj khov thiab tsis muaj qhov ruaj khov yog cov roj. Cov roj tsis muaj qhov ruaj khov