Video: Cov kua dej thiab hom kua dej yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov kua dej tuaj yeem muab faib ua plaub yam yooj yim hom . Zoo tagnrho Kua dej . Tiag tiag Kua dej . Newtonian Kua dej . Tsis yog-Newtonian Kua dej.
Xav txog qhov no, cov kua dej piav qhia hom kua dej yog dab tsi?
Cov kua dej yog txhais raws li cov khoom uas ntws los yog deform nyob rau hauv cov ntaub ntawv shear stress. Kua dej tsis muaj qhov tseeb ntawm nws tus kheej. Nws assumes cov duab ntawm nws lub thawv. Cov kua dej thiab gases hu ua kua dej . Nyob ntawm tus cwj pwm ntawm kua dej , kua dej muab faib ua ob hom.
Tsis tas li ntawd, dej thiab nws cov khoom yog dab tsi? Mass Density: Nws yog qhov loj ntawm lub kua dej ib unit volume. Viscosity: Viscosity yog qhov vaj tse ntawm kua dej uas txhais cov kev sib cuam tshuam ntawm cov khoom txav ntawm cov kua dej . Nws yog qhov ntsuas ntawm qhov tsis kam mus rau qhov ntws ntawm kua dej . Lub zog viscous yog vim lub zog intermolecular ua haujlwm hauv lub kua dej.
Hauv qhov no, ob hom kua dej yog dab tsi?
Cov kua dej thiab gases ob dav hom kua dej . Txhua kua dej uas muaj nyob hauv lub cev yog qhov tiag kua dej . Tsuas yog tsis muaj tiag kua dej yog cov tswv yim uas peb tau tsim, xws li calorically zoo meej gases, inviscid kua dej , Newtonian kua dej , lwm.
Cov dej puas yog dej?
Cov kua thiab cov pa roj yog hu ua kua dej vim lawv tuaj yeem ua kom ntws, lossis txav mus. Hauv ib qho twg kua dej , cov molecules lawv tus kheej nyob rau hauv tas li, random txav, sib tsoo nrog ib leeg thiab nrog cov phab ntsa ntawm ib lub thawv. Nyob rau hauv cov xwm txheej atmospheric, dej muaj li ib ua kua.
Pom zoo:
Lub kinetic txoj kev xav ntawm cov teeb meem cuam tshuam li cas rau cov kua dej thiab cov pa roj?
Lub kinetic molecular txoj kev xav ntawm cov teeb meem hais tias: Cov teeb meem yog tsim los ntawm cov khoom uas hloov mus tas li. Tag nrho cov khoom muaj lub zog, tab sis lub zog sib txawv nyob ntawm qhov ntsuas kub ntawm cov qauv ntawm cov teeb meem nyob hauv
Dab tsi yog qhov txawv ntawm cov khoom tseem ceeb thiab cov kab hauv cov dej hiav txwv?
Ib cag ntawm 12 lub ntsiab lus uas yog cov ntsiab lus tseem ceeb lossis cov ntsiab lus me thiab qee cov ntsiab lus uas yog cov roj yaj, tag nrho lwm cov ntsiab lus yaj hauv dej hiav txwv muaj nyob rau hauv cov ntsiab lus tsawg dua 1 ppm thiab hu ua cov kab hauv qab. Ntau cov kab ke tseem ceeb rau lub neej
Dab tsi yog qhov tseem ceeb tshaj plaws uas yuav tsum muaj rau cov kua dej ntws hauv cov kav dej Dab tsi lwm yam cuam tshuam rau cov dej ntws?
Thaum ib qho kev quab yuam sab nraud yog exerted rau ntawm cov kua uas muaj, qhov tshwm sim siab yog kis sib npaug thoob plaws hauv cov kua. Yog li txhawm rau kom dej ntws, dej xav tau qhov sib txawv siab. Cov kav dej kuj tuaj yeem cuam tshuam los ntawm cov kua dej, cov yeeb nkab loj, qhov kub thiab txias (cov kav dej khov), cov kua dej ntom ntom
Cov piv txwv ntawm tsev neeg cov kua qaub thiab cov hauv paus yog dab tsi?
Daim ntawv teev cov tsev Bases & Acids Baking Soda. Baking soda yog lub npe nrov rau sodium bicarbonate, paub tshuaj raws li NaHCO3. Diluted Soaps. Tsev neeg Ammonia. Tsev Neeg Vinegar. Citric Acid
Cov khoom thiab cov kua dej yog dab tsi?
Gases, kua thiab khib nyiab yog tag nrho ntawm cov atoms, molecules, thiab / los yog ions, tab sis cov cwj pwm ntawm cov khoom no txawv nyob rau hauv peb theem. Gas tau zoo sib cais tsis tu ncua. kua yog nyob ze ua ke nrog tsis tu ncua. cov khoom yog nruj nreem ntim, feem ntau yog nyob rau hauv ib tug tsis tu ncua qauv