2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Supersaturation tshwm sim nrog cov tshuaj tov thaum cov concentration ntawm cov kua dej ntau tshaj qhov concentration teev los ntawm tus nqi sib npaug ntawm solubility. … Ib qho tshuaj supersaturated nyob rau hauv lub xeev metastable; Nws tuaj yeem raug coj mus rau qhov sib npaug los ntawm kev yuam kom dhau ntawm cov kuab tshuaj kom cais tawm ntawm cov tshuaj.
Yuav ua li cas super saturation tshwm sim?
Gas supersaturation tshwm sim thaum tag nrho cov roj yaj hauv lub cev dej tshaj qhov concentration ntawm tag nrho cov pa roj uas tuaj yeem yaj tau raws li qhov xwm txheej tau muab qhov kub, yaj, thiab roj. siab saum dej (feem ntau yog txiav txim siab los ntawm qhov siab).
Koj piav qhia txog supersaturation li cas?
A cov tshuaj supersaturated yog cov tshuaj uas muaj ntau tshaj li qhov siab tshaj ntawm cov kua uas muaj peev xwm ua kom yaj ntawm qhov kub thiab txias. Lub recrystallization ntawm cov kua dej ntau dhau hauv cov tshuaj supersaturated tuaj yeem pib los ntawm qhov sib ntxiv ntawm me me crystal of solute, hu ua noob siv lead ua.
Yuav ua li cas cov tshuaj supersaturated tsim?
Ib qho tshuaj aqueous tuaj yeem ua tau supersaturated los ntawm ua ntej dissolving cov kua nyob rau hauv dej ntawm qhov kub siab uas siv txaus los muab ib tug concentration nyob rau hauv nws solubility ntawm qhov kub thiab txias. Tom qab qhov kawg ntawm cov kua nplaum uas tau yaj lawm cov tshuaj yog txias.
Vim li cas cov kev daws thiaj li nkag siab?
(a) Thaum muaj zogyog ntxiv rau cov kuab tshuaj nyob rau hauv uas nws yog soluble, solute hais tawm ntawm qhov chaw ntawm cov khoom thiab ua solvated los ntawm cov hnyav, pib tsim ib unsaturated tov. (b) Thaum qhov ntau tshaj qhov ua tau ntawm cov kuab tshuaj tau yaj, cov tshuaj yuav saturated.
Pom zoo:
Puas yog rov tshwm sim dua lossis rov tshwm sim dua?
Reoccur thiab recur yog verbs uas qhia ib lo lus hauv paus. Thaum lawv nyob ze heev ntawm lub ntsiab lus, lawv tsis zoo ib yam. Tej yam uas yog rov tshwm sim dua thiab dhau mus, tej zaum nyob rau ib ntus. Hauv qhov sib piv, ib yam dab tsi uas rov tshwm sim tsuas yog tshwm sim dua tab sis tsis tas yuav rov ua dua.
Rau qhov tshwm sim tshwm sim?
Cov tshuaj tiv thaiv tus kheej yogtawm tsam uas nyiam tsim cov khoom ntawm cov xwm txheej uas tshwm sim. … Qhov kev sib xyaw ua ke ntawm kev txo qis ntawm lub zog thiab qhov nce hauv entropy txhais tau hais tias cov tshuaj tiv thaiv combustion tshwm sim tsis tu ncua.
Thaum twg pfizer tshwm sim tshwm sim?
Qee yam tshwm sim tshwm sim txoj cai tom qab koj txhaj tshuaj, zoo li mob me me hauv koj txhais caj npab. Lwm tus yuav siv sij hawm ntau teev los txhim kho. Nco ntsoov tias nrog ob koob tshuaj tiv thaiv zoo li Pfizer-BioNTech thiab Moderna, koj tuaj yeem pom muaj kev phiv ntau dua tom qab txhaj tshuaj thib ob.
Yuav tshwm sim lossis tshwm sim?
Peb hom tshwm sim yog arise, sawv, arisen. Nws yog siv hauv cov ntsiab lus tseem ceeb: Ib lub sijhawm tshwm sim thiab nws txiav txim siab los ua txoj haujlwm hauv Brussels. Ib qho teeb meem tshwm sim nrog kuv daim ntawv hla tebchaws. Thaum siv tshwm sim lossis tshwm sim?
Yuav ua li cas txiav txim siab seb qhov kev tshwm sim yog tshwm sim los yog tsis ua raws li txoj cai?
Kev sib xyaw ua lej ntawm kev hloov pauv enthalpy thiab hloov pauv hloov pauv tso cai rau kev hloov pauv ntawm lub zog dawb los suav. A tawm tsam nrog tus nqi tsis zoo rau ΔG tso tawm lub zog dawb thiab yog li nws tus kheej. Cov tshuaj tiv thaiv nrog qhov zoo ΔG yog tsis ua raws li kev xav thiab yuav tsis nyiam cov khoom.
