Vim li cas Tuam Tshoj phaj siv hauv chemistry lab?
Vim li cas Tuam Tshoj phaj siv hauv chemistry lab?

Video: Vim li cas Tuam Tshoj phaj siv hauv chemistry lab?

Video: Vim li cas Tuam Tshoj phaj siv hauv chemistry lab?
Video: Plab Plab Ntswg..(Pluav Pluav Ntswg) Maiv Twm New Song 2023-2024 2024, Kaum ib hlis
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Suav zaub mov yog porcelin phaj uas yog siv hauv science chav kuaj rau kev sim. Peb siv Suav zaub mov nyob rau hauv peb cov txheej txheem kev sim los tsim ib qho kev daws teeb meem los yog cov khoom precipitate ntawm cov khoom yaj thiab kom evaporate cov kuab tshuaj ntau dhau.

Tsis tas li ntawd kom paub yog, dab tsi yog kev siv cov tais diav hauv chemistry?

Suav zaub mov (los yog evaporating tais ) yog glazed porcelain tais muaj nyob rau hauv ntau qhov ntau thiab tsawg. Lawv yog cov tuab thiab yog cov insulators zoo thiab tuaj yeem tiv taus qhov kub thiab txias. Nws mas siv rau boiling, evaporating daws thiab crystallization ntawm ntsev nyob rau hauv chemistry lab.

Tom qab ntawd, lo lus nug yog, vim li cas lub tais evaporating zoo dua lub beaker? Lub cim zoo ntawm evaporation tais diav pab hauv evaporation nyob rau hauv ob txoj kev: cov kua nyob rau hauv muaj ib tug loj deg cheeb tsam, speeding lub evaporation txheej txheem. Qhov qhib sab saum toj tso cai rau cov vapors dissipate thaum piv rau a ntau muaj daim iav zoo li ib khob or lub hwj.

Yog li ntawd, dab tsi yog qhov kev siv ntawm evaporating tais hauv chav kuaj?

Evaporating cov tais diav yog siv los evaporate cov kuab tshuaj ntau dhau - feem ntau cov dej - los tsim cov tshuaj concentrated los yog cov khoom precipitate ntawm cov khoom yaj. Feem ntau yog ua los ntawm cov plooj (porcelain) lossis borosilicate iav.

Leej twg tsim lub tais evaporating?

Pyrex muaj nws lub hauv paus pib thaum xyoo 1910, thaum Asmeskas lub tuam txhab iav Corning Glass Works pib nrhiav cov khoom tshiab los nthuav nws cov iav borosilicate, Nonex. Ntawm qhov kev tawm tswv yim ntawm Bessie Littleton, Corning tus kws tshawb fawb tus poj niam, lub tuam txhab pib tshawb xyuas Nonex rau bakeware.

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