Video: Dab tsi yog qhov sib xyaw colloid?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv chemistry, a colloid yog a sib tov nyob rau hauv uas ib yam khoom ntawm microscopically dispersed insoluble los yog soluble hais raug tshem tawm thoob plaws lwm yam khoom.
Xav txog qhov no, dab tsi yog qhov kev daws teeb meem colloid?
Colloidal daws , los yog colloidal suspensions, tsis muaj dab tsi tab sis yog ib qho sib xyaw uas cov tshuaj raug ncua tsis tu ncua hauv cov kua dej. A colloid yog ib yam khoom me me thiab me me uas kis tau zoo ib yam los ntawm lwm cov khoom. Txawm li cas los xij, a colloidal tshuaj feem ntau yog hais txog cov kua ua kua.
Qhov thib ob, puas yog ib qho colloid sib xyaw ua ke? Colloids ( heterogeneous ) Ib qho piv txwv ntawm a colloid yog mis. Mis yog ib sib tov ntawm cov kua butterfat globules dispersed thiab tshem tawm hauv dej. Colloids feem ntau xav txog heterogeneous sib tov , tab sis muaj qee qhov zoo ntawm homogeneous sib tov ib yam nkaus.
Yog li ntawd, dab tsi yog colloid yooj yim txhais?
Txhais : A colloid yog ib yam khoom microscopically dispersed tusyees thoob plaws lwm yam khoom. Lub dispersed-theem hais muaj ib txoj kab uas hla ntawm li 5 thiab 200 nanometers. Piv txwv li: Mis yog ib qho emulsion, uas yog a colloid uas ob tog yog kua.
Yuav ua li cas yog ib co piv txwv ntawm ib tug colloid?
Colloids muaj nyob rau hauv lub neej txhua hnub. Qee qhov piv txwv xws li whipped cream, mayonnaise, mis nyuj, butter, gelatin, jelly, av nkos dej, plaster, xim iav, thiab ntawv. Txhua colloid muaj ob ntu: colloidal particle thiab tus dispersing nruab nrab.
Pom zoo:
Dab tsi yog qhov txawv ntawm qhov sib txawv ntawm qhov sib txawv thiab qhov sib txawv ntawm qhov ntab?
Integers thiab floats yog ob yam sib txawv ntawm cov ntaub ntawv tus lej. Ib tus lej (feem ntau hu ua anint) yog tus lej tsis muaj tus lej lej. Float isa floating-point number, uas txhais tau hais tias nws yog tus lej uas muaj tus lej lej. Floats siv thaum xav tau ntau dua
Puas yog cov pa roj carbon dioxide yog qhov sib xyaw lossis sib xyaw?
CO2 yog lub npe hu ua carbon dioxide. Ib lub ntsiab yog ib yam khoom ua los ntawm ib hom atom. Cov tshuaj uas tsim cov khoom sib tov tuaj yeem yog cov khoom lossis cov khoom sib txuas, tab sis cov khoom sib tov tsis tsim cov tshuaj sib txuas. Cov khoom sib xyaw tuaj yeem sib cais rau hauv lawv cov khoom qub ib zaug ntxiv (kwv yees) yooj yim
Dab tsi yog qhov sib txawv ntawm qhov sib txawv ntawm cov kab sib txuas thiab ntau qhov sib piv?
6. (2 lub cim) Qhov sib txawv ntawm cov kab sib txuas (kev sib piv) thiab ntau qhov sib piv yog dab tsi? Cov kab sib xyaw ua ke yog npaj sib piv; uas yog, tshwj xeeb txhais tau tias yog ua ke nyob rau hauv ntau txoj kev thiab contrasted nrog rau lwm yam kev sib txuas ntawm txhais tau tias
Dab tsi yog qhov sib xyaw ntawm cov khoom sib xyaw?
Ib lub tebchaw muaj cov atom ntawm cov khoom sib txawv ntawm cov tshuaj sib xyaw ua ke hauv qhov sib piv ruaj khov. Kev sib tov yog ib qho kev sib xyaw ntawm ob lossis ntau yam tshuaj uas tsis muaj tshuaj lom neeg ua ke lossis cov tshuaj tiv thaiv. Kev sib xyaw. Cov tshuaj muaj cov ntsiab lus sib txawv hauv qhov sib piv ruaj khov uas tau hais tseg los ntawm cov ntawv cog lus tshuaj
Dab tsi yog txoj cai ntawm kev sib xyaw rau cov khoom sib xyaw?
Rule of Mixtures yog ib txoj hauv kev rau kev kwv yees kwv yees ntawm cov khoom siv sib xyaw, raws li kev xav tias cov khoom sib xyaw yog qhov ntim hnyav nruab nrab ntawm cov theem (matrix thiab dispersed theem) cov khoom