Tyndall effect thiab Brownian zog yog dab tsi?
Tyndall effect thiab Brownian zog yog dab tsi?

Video: Tyndall effect thiab Brownian zog yog dab tsi?

Video: Tyndall effect thiab Brownian zog yog dab tsi?
Video: Mr. Kirkman Demonstrates the Tyndall Effect 2024, Kaum ib hlis
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Txhais. Tyndall Effect : Tyndall effect yog qhov tawg ntawm lub teeb raws li lub teeb teeb hla dhau los ntawm kev daws teeb meem colloidal. Brownian Tsab ntawv tsa suab: Brownian kev txav yog qhov random kev txav mus los ntawm cov khoom hauv cov kua dej vim lawv sib tsoo nrog lwm cov atoms lossis molecules.

Tsis tas li cov lus nug yog, Brownian txav hauv chemistry yog dab tsi?

Brownian zog yog qhov nruam random kev txav mus los ntawm cov khoom me me raug tshem tawm hauv cov kua dej, uas tshwm sim los ntawm kev sib tsoo nrog cov kua dej molecules. Thawj zaug pom los ntawm British botanist R. Brown (1773-1858) thaum kawm paj ntoos. Cov nyhuv kuj tseem pom nyob rau hauv cov pa taws uas raug tshem tawm hauv cov pa roj.

Tom qab ntawd, lo lus nug yog, dab tsi yog qhov cuam tshuam Tyndall thiab dab tsi ua rau nws? Nws yog tshwm sim los ntawm reflection ntawm qhov xwm txheej hluav taws xob los ntawm qhov chaw ntawm cov khoom, kev xav los ntawm cov phab ntsa sab hauv ntawm cov khoom, thiab refraction thiab diffraction ntawm cov hluav taws xob thaum nws dhau los ntawm cov khoom. Lwm cov ntsiab lus suav nrog Tyndall beam (lub teeb tawg los ntawm colloidal hais).

Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog cov nyhuv Tyndall siv rau?

Cov Tyndall Effect yog cov nyhuv ntawm lub teeb tawg nyob rau hauv colloidal dispersion, thaum tsis pom lub teeb nyob rau hauv ib qho kev daws teeb meem. Qhov no nyhuv yog siv rau txiav txim siab seb qhov sib tov puas yog cov tshuaj muaj tseeb lossis colloid.

Puas yog kev tshem tawm qhia Brownian txav?

Kev ncua muaj qhia tyndall effect thaum brownian zog thiab electrophoresis yog qhia los ntawm kev ncua vim particle loj ntawm kev ncua yog txaus txaus ua yeeb yam cov teebmeem no. Colloid: Qhov luaj li cas ntawm colloidal particle nyob ze ntawm 1-100 nm.

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