Video: Thaum twg tsis muaj zog ntxiv lawm los ntawm teeb meem?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
-273.15 degrees Celsius (-459.67 degrees Fahrenheit) yog qhov kub ntawm qhov uas tsis muaj zog ntxiv lawm ua tshem tawm ntawm qhov teeb meem . Nws yog hu ua Absolute Zero thiab cim 0 rau lub Kelvin thiab Rankine nplai.
Ib yam li ntawd, koj tuaj yeem nug, yuav ua li cas thaum lub zog thermal raug tshem tawm?
Cov teeb meem ib puag ncig feem ntau absorbs thermal zog . Yog koj ntsuas thermal zog hauv qhov teeb meem thiab qhov xwm txheej ib puag ncig, koj yuav pom qhov ntawd zog tseem khaws cia. dej vapor thaum thermal zog raug tshem tawm los ntawm nws. ntawm qhov teeb meem uas tshwm sim thaum thermal zog yog ntxiv rau cov kua.
Ib yam li ntawd, theem ntawm cov teeb meem twg muaj peev xwm muaj zog tshaj plaws? Tag nrho cov khoom muaj zog , mas cov zog nws txawv nyob ntawm qhov kub thiab txias tus qauv ntawm teeb meem yog in. Qhov no nyob rau hauv lem txiav txim seb cov khoom muaj nyob rau hauv cov khoom, kua, los yog gaseous lub xeev. Molecules nyob rau hauv cov khoom theem muaj tsawg kawg nkaus zog , hos gasparticles muaj cov loj tshaj tus nqi ntawm zog.
Ib yam li ntawd, nws tau nug, qhov twg yog qhov hloov pauv ntawm thermal zog hauv qhov teeb meem uas tsis muaj kev hloov pauv tag nrho?
Kev coj ua yog hloov ntawm thermal zog tsis muaj hloov qhov teeb meem . Cov cuab yeej no, hu ua Newton'scradle, pab kom pom kev ua haujlwm. Tom qab ib lub pob ntaus muaj, feem ntau ntawm cov kinetic zog yog pauv toone pob ntawm qhov kawg.
Lub zog thermal ua li cas hloov pauv ntawm ib lub xeev mus rau lwm qhov?
Koj tuaj yeem nqa qhov teeb meem los ntawm ib lub xeev mus rau lwm lub byadding los yog tshem tawm zog . Tshuaj hloov lub xeev thaum nws thermal zog nce lossis txo kom txaus. Particles ntawm cov kua muaj ntau dua thermal zog tshaj particles ntawm tib yam khoom nyob rau hauv ib tug khoom daim ntawv.
Pom zoo:
Yuav ua li cas tshwm sim thaum koj sib tov ib tug muaj zog acid nrog ib tug tsis muaj zog puag?
Hom 2: thaum muaj zog acid / base reacts nrog lub hauv paus tsis muaj zog / acid yog hydronium thiab hydroxyl ions tam sim no nyob rau hauv sib npaug amt ces ntsev thiab dej yog tsim thiab lub zog tso tawm uas tsawg tshaj li 57 kj / mole vim lub dissociation ntawm lub tsis muaj zog acid / puag uas feem ntau endothermic
Thaum twg muaj zog acid yog titrated nrog lub hauv paus tsis muaj zog?
Titration ntawm lub hauv paus tsis muaj zog nrog lub zog acid. Nyob rau hauv ib qho tsis muaj zog hauv paus-muaj zog acid titration, cov kua qaub thiab lub hauv paus yuav hnov mob los tsim cov kua qaub. Lub conjugate acid yuav raug tsim thaum lub sij hawm titration, uas tom qab ntawd reacts nrog dej los tsim hydronium ions. Qhov no ua rau muaj kev daws teeb meem nrog pH qis dua 7
Qhov teeb meem twg tso cai rau lub teeb hla ncaj qha los ntawm nws?
Cov ntaub ntawv zoo li huab cua, dej, thiab iav ntshiab yog hu ua pob tshab. Thaum lub teeb ntsib cov ntaub ntawv pob tshab, yuav luag tag nrho nws hla ncaj qha los ntawm lawv. iav, piv txwv li, yog pob tshab rau txhua lub teeb pom kev. Cov khoom Translucent tso cai rau qee lub teeb hla lawv
Koj yuav txiav txim siab li cas yog tias qhov tsis sib xws tsis muaj kev daws teeb meem?
Cais tawm tus nqi tseeb ntawm sab laug ntawm qhov tsis sib xws. Yog tias tus lej ntawm sab nraud ntawm qhov tsis sib xws yog qhov tsis zoo, koj qhov kev sib npaug tsis muaj kev daws teeb meem lossis tag nrho cov lej tiag tiag li kev daws teeb meem. Siv cov cim ntawm txhua sab ntawm koj qhov tsis sib xws los txiav txim siab qhov twg ntawm cov xwm txheej no tuav
Lub xeev twg ntawm cov teeb meem twg muaj zog tshaj intermolecular rog ntawm attraction?
Raws li qhov kub thiab txias tseem poob qis, qhov teeb meem tsim muaj zog. Vim tias cov khoom tsis muaj zog kinetic, cov khoom tsis muaj 'lub sij hawm' txav mus los, cov khoom muaj 'lub sij hawm' kom nyiam. Yog li ntawd, cov khib nyiab muaj qhov muaj zog tshaj plaws intramolecular rog (vim lawv muaj qhov muaj zog tshaj plaws)