Video: Yuav ua li cas cov khoom diffuse hauv cov kua?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Khoom muaj peev xwm diffuse hauv kua raws li lawv nyem rau hauv molecular gap ntawm kua , xws li ntsev hauv dej, txawm li cas los xij cov ntsev ntau dhau ua rau cov ntsev tsis yaj vim qhov khoob ntawm cov molecules twb tau ntim lawm.
Cia li xav txog qhov no, yuav ua li cas diffusion tshwm sim hauv cov kua?
Diffusion kuj tuaj yeem tshwm sim hauv kua . Qhov no yog vim cov particles hauv kua tuaj yeem txav mus los ib leeg, uas txhais tau hais tias thaum kawg lawv sib xyaw ua ke. Piv txwv li, poov tshuaj manganate (VII) yog xim liab. Yog hais tias koj muab ib tug crystal ntawm nws mus rau hauv lub hub ntawm dej, cov xim liab doog kis maj mam los ntawm dej.
Tsis tas li ntawd, yuav ua li cas diffusion tshwm sim hauv cov khib nyiab? Diffusion tuaj yeem tshwm sim hauv gases, kua, los yog cov khoom khib nyiab . Hauv cov khoom khib nyiab , tshwj xeeb, tshwm sim diffusion vim yog thermally-activated random motion ntawm atoms - tshwj tsis yog cov khoom nyob rau ntawm qhov kub tsis txias (zero Kelvin), tus neeg atoms kom vibrating thiab nws thiaj li txav mus rau hauv cov khoom.
Raws li qhov no, cov khoom puas tuaj yeem tawg hauv cov pa roj?
Thaum rau qee yam cov khoom khib nyiab qhov chaw no txaus los kho cov molecule thaum rau qee qhov lawv xav tau ntau qhov chaw uas lawv nkag mus cov pa yog li ntawd cov khoom khib nyiab tau diffused hauv cov pa thiab tsis nyob hauv cov kua.
Cov txheej txheem ntawm diffusion hauv cov kua sib txawv li cas hauv cov khoom?
Diffusion hauv Khoom , Cov kua dej , Gases thiab Jelly. Diffusion hauv kua : Thaum cov tshuaj yaj hauv kua (zoo li ntsev yaj hauv dej) cov khoom kis tau tawm. Diffusion hauv cov khoom khib nyiab : Diffusion tsis tshwm sim hauv cov khoom khib nyiab vim hais tias cov khoom tsis pub dawb txav mus los thiab yog li lawv tsis tuaj yeem sib xyaw.
Pom zoo:
Yuav ua li cas yog tias ib qho me me ntawm cov kua qaub ntxiv rau hauv cov tshuaj buffered?
Nws yog tsim los ntawm kev sib xyaw loj ntim ntawm cov kua qaub tsis muaj zog lossis tsis muaj zog nrog nws cov conjugate puag lossis acid. Thaum koj ntxiv me me ntawm cov kua qaub lossis alkali (hauv paus) rau nws, nws cov pH tsis hloov pauv loj. Hauv lwm lo lus, cov tshuaj tsis txwv tsis pub cov kua qaub thiab lub hauv paus los ntawm kev sib xyaw ua ke
Koj puas ntxiv cov kua qaub rau hauv lub hauv paus lossis lub hauv paus rau cov kua qaub?
Ntxiv cov kua qaub ua kom cov concentration ntawm H3O + ions hauv cov tshuaj. Ntxiv ib lub hauv paus txo cov concentration ntawm H3O + ions hauv cov tshuaj. Cov kua qaub thiab lub hauv paus zoo li cov tshuaj tiv thaiv. Yog hais tias lub hauv paus yog ntxiv rau cov kua qaub, cov tshuaj yuav tsis acidic thiab txav mus rau nruab nrab ntawm pH nplai
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
Vim li cas lub suab mus nrawm dua hauv cov khoom hauv cov kua?
Lub suab mus nrawm dua hauv cov khoom hauv cov kua, thiab sai dua hauv cov kua ntau dua hauv cov pa. Qhov no yog vim qhov ceev ntawm cov khib nyiab siab dua li cov kua uas txhais tau hais tias cov khoom nyob ze ua ke
Yuav ua li cas cov khoom siv caj ces hauv txhua lub xov tooj tshiab tsim los ntawm kev faib tawm ntawm tes sib piv nrog cov khoom siv caj ces hauv lub xov tooj qub?
Mitosis tshwm sim nyob rau hauv ob lub nuclei uas zoo tib yam rau thawj nucleus. Yog li, ob lub hlwb tshiab tsim tom qab kev faib tawm ntawm tes muaj tib yam khoom siv caj ces. Thaum lub sij hawm mitosis, chromosomes condense los ntawm chromatin. Thaum saib nrog lub microscope, chromosomes pom nyob rau hauv lub nucleus