Video: Yuav ua li cas koj hloov ib qho khoom ua kua?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov atoms hauv a ua kua muaj zog ntau dua li cov atoms hauv a khov kho . Muaj qhov kub tshwj xeeb rau txhua yam khoom hu ua melting point. Thaum a khov kho mus txog qhov kub ntawm nws cov ntsiab lus melting, nws tuaj yeem ua ib qho ua kua.
Raws li txoj cai, nws hu ua dab tsi thaum cov khoom hloov pauv mus rau cov kua?
Piv txwv li, a khov kho tuaj yeem ua ib ua kua . Qhov no theem hloov yog hu ua yaj. Thaum a khoom hloov mus rau hauv ib tug gas, nws yog hu ua sublimation. Thaum muaj roj kev hloov hauv a ua kua , yog hu ua condensation. Thaum a kua hloov ua gas, hu ua evaporation.
Yuav ua li cas dej hloov ntawm ib qho khoom mus rau cov kua? Peb ua tau hloov ib khov kho hauv a ua kua los yog gas hloov nws kub. Qhov no yog hu ua hloov nws lub xeev. Dej yog a ua kua nyob rau hauv chav tsev kub, tab sis ua ib khov kho (hu ua dej khov) yog tias nws txias. Tib yam dej hloov mus rau hauv cov pa roj (hu ua dej vapor) yog tias nws yog cua sov.
Ua li no, yuav ua li cas thaum cov khoom hloov mus ua kua?
Thaum a khov kho yog rhuab qhov hais tau zog thiab pib rau vibrate sai thiab ceev. Hauv qhov no, khov kho yog yaj rau form ib ua kua . Cov particles nyob rau hauv ua kua yog tib yam li nyob rau hauv khov kho tab sis lawv muaj zog ntau dua.
Thaum twg cov kua ua ib qho khoom?
Raws li tus qauv atmospheric tej yam kev mob, dej tshwm sim raws li ib tug kua. Tab sis yog tias peb txo qis kub hauv qab no 0 degrees Celsius , los yog 32 degrees Fahrenheit , dej hloov nws theem mus rau hauv ib qho khoom hu ua dej khov.
Pom zoo:
Yuav ua li cas koj txiav txim siab npaum li cas ntawm cov kua qaub uas yuav tsum tau neutralize lub hauv paus?
Kev daws qhov teeb meem Acid-Base Neutralization Kauj Ruam 1: Muab xam cov moles ntawm OH-. Molarity = moles / ntim. moles = Molarity x Volume. moles OH- = 0.02 M/100 milliliters. Kauj ruam 2: Xam qhov ntim ntawm HCl xav tau. Molarity = moles / ntim. Volume = moles/molarity. Volume = moles H+/0.075 Molarity
Yuav ua li cas rau ib qho khoom wavelength thaum cov khoom txav ntawm koj?
Yog tias cov khoom txav mus rau koj, cov waves raug compressed, yog li lawv cov wavelength luv dua. Yog tias qhov khoom txav deb ntawm koj, cov nthwv dej tau nthuav tawm, yog li lawv lub wavelength ntev dua. Cov kab yog hloov mus rau ntev (redder) wavelengths --- qhov no hu ua aredshift
Yuav ua li cas koj thiaj paub tias kev hloov pauv yog ib qho rau ib qho?
Thaum ib tug linear transformation yog piav nyob rau hauv lub sij hawm ntawm ib tug matrix nws yog ib qho yooj yim los txiav txim seb lub linear transformation yog ib-rau-ib los yog tsis los ntawm kev tshuaj xyuas cov linear dependence ntawm txhua kab ntawm lub matrix. Yog hais tias cov kab yog linearly ywj siab, linear transformation yog ib-rau-ib
Vim li cas cov kua siv lead ua kua hloov xim nrog kub?
Cov molecules hauv cov kua siv lead ua kua tuaj yeem txav mus los ntawm nws tus kheej, xws li hauv cov kua, tab sis nyob twj ywm me ntsis, xws li hauv cov khoom siv lead ua (khoom). Cov kua siv lead ua kua no teb rau kev hloov pauv ntawm qhov kub thiab txias los ntawm kev hloov xim. Raws li qhov kub thiab txias, lawv cov xim hloov ntawm liab mus rau txiv kab ntxwv, daj, ntsuab, xiav, thiab ntshav
Koj yuav hloov qhov kev siv ntawm ib qho xim li cas?
Koj tuaj yeem hloov qhov kev siv ntawm cov xim, ua rau nws duller lossis ntau nruab nrab los ntawm kev ntxiv grey rau xim. Koj tuaj yeem hloov qhov kev siv ntawm cov xim los ntawm kev ntxiv nws cov khoom ntxiv (qhov no yog cov xim pom ncaj qha rau ntawm cov xim xim log). Thaum hloov xim li no, cov xim tsim tau hu ua lub suab nrov