Qhov sib txawv tseem ceeb ntawm qhov ceev thiab qhov concentration yog qhov ceev ntawm ib yam khoom nyob ntawm tus nqi ntawm cov teeb meem nkaus xwb nyob rau hauv ib lub ntim uas qhov concentration nyob ntawm tus nqi ntawm cov teeb meem thiab dab tsi compound nyob rau hauv, thiab.
Qhov ntom thiab qhov siab yog ob yam tseem ceeb thiab tseem ceeb uas peb tham txog hauv chemistry thiab cov khoom siv sciences. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum muaj kev nkag siab zoo txog cov ntsiab lus no ua ntej sib tham txog qhov sib txawv ntawm qhov ntom ntom ntom ntom.
Dab tsi yog qhov ntom ntom?
Density yog ib qho tseem ceeb ntawm cov teeb meem. Nws ncaj qha txuas nrog pawg. Yog li ntawd, kom tau txais kev nkag siab meej txog nws yog qhov tseem ceeb kom muaj kev nkag siab meej ntawm pawg. Raws li, qhov hnyav yog qhov ntsuas ntawm inertia ntawm ib yam khoom. Qhov ceev, nyob rau hauv daim ntawv tseem ceeb tshaj plaws thiab nws yog qhov loj ntawm ib chav tsev ntim.
Rau cov khoom siv ntau nrog cov khoom sib faib loj, peb tuaj yeem xam qhov ntsuas no yooj yim los ntawm kev faib tag nrho cov khoom ntawm cov khoom los ntawm tag nrho cov ntim. Txawm li cas los xij, yog tias qhov kev faib khoom loj tsis yog, peb xav tau txoj hauv kev nyuaj ntxiv los ntsuas qhov ntom.
Daim duab 01: Ib Qhov Kev Nthuav Dav uas muaj qee cov kua dej thiab cov khoom uas muaj qhov sib txawv
Tsis tas li ntawd, peb tuaj yeem piav qhia tau yooj yim ntawm ntab ntawm cov khoom siv nws qhov ceev. Ntawm no, lub floatation txhais tau hais tias cov kua los yog cov khoom sib xws uas yog denser dua li cov kua dej uas tau muab rau hauv cov kua dej. Yog li, yog tias qhov ntom ntawm cov kua los yog cov khoom sib xws tsawg dua li cov kua dej tau muab, nws yuav ntab rau ntawm cov kua dej. Ntxiv mus, peb tuaj yeem txhais lub sij hawm txheeb ze qhov ntom ntom kom sib piv qhov ntom ntawm ob lub kua dej. Qhov no yog qhov piv ntawm ob qhov ceev thiab tsuas yog tus lej xwb.
Kev Cuam Tshuam yog dab tsi?
Kev xav yog lwm lub tswv yim tseem ceeb hauv chemistry. Hauv kev nkag siab zoo, concentration yog tus nqi ntawm cov khoom sib xyaw hauv cov tshuaj. Muaj ntau ntau hom kev concentration uas peb tuaj yeem txhais tau. Piv txwv li, qhov loj concentration yog qhov loj ntawm qhov muab compound nyob rau hauv ib chav tsev ntim. Feem ntau, cov chav nyob rau qhov ntsuas no yog g / dm 3, tab sis muaj qee qhov lwm chav thiab.
Ntxiv mus, qhov molar concentration yog tus naj npawb ntawm moles ntawm cov khoom muab hauv ib chav tsev ntim. Chav tsev ntawm lub ntsiab lus no yog mol / dm3Ib yam li ntawd, tus lej concentration yog tus naj npawb ntawm cov molecules ntawm cov khoom muab hauv ib chav tsev ntim. Chav tsev ntawm qhov no yog dm-3 (ib cubic decimeter). Lub ntim concentration yog qhov ntim feem ntawm qhov kev txiav txim siab los ntawm tag nrho cov ntim ntawm tag nrho cov tebchaw ua ntej sib tov.
Daim duab 02: Kev sib xyaw ntawm cov kev daws teeb meem sib txawv tuaj yeem ua rau lawv cov xim txawv
Tag nrho cov ntsiab lus ntawm cov ntsiab lus no cuam tshuam nrog ib leeg. Yog li ntawd, peb tuaj yeem tau txais cov molar concentration los ntawm kev faib cov huab hwm coj concentration los ntawm cov txheeb ze molecular hnyav ntawm cov khoom muab.
Ib yam li ntawd, peb tuaj yeem tau txais tus lej concentration los ntawm kev muab cov molar concentration los ntawm Avogadro tus lej. Thiab lub derivation ntawm lub siab concentration yuav tsum tau lub zoo tagnrho gas sib npaug. Ntawm qhov tod tes, peb tuaj yeem nthuav qhia qhov concentration kuj nyob rau hauv ppm, uas txhais tau tias qhov chaw ib lab. Nws yog ib daim ntawv muaj txiaj ntsig zoo thaum nthuav qhia me me. Tsis tas li ntawd, qhov concentration ntawm cov khoom uas tsis yog-solvable yog qhov tas li thiab tsis nyob ntawm qhov ntim.
Qhov txawv ntawm qhov ntom ntom thiab qhov siab yog dab tsi?
Density yog qhov piv ntawm huab hwm coj thiab ntim ntawm ib yam khoom thaum concentration yog qhov piv ntawm tus nqi thiab ntim ntawm cov khoom. Yog li ntawd, qhov sib txawv tseem ceeb ntawm qhov ceev thiab concentration yog qhov ceev ntawm ib yam khoom nyob ntawm tus nqi ntawm cov khoom nyob rau hauv ib lub ntim uas qhov concentration nyob ntawm tus nqi ntawm cov teeb meem thiab dab tsi compound nyob rau hauv, thiab.
Raws li lwm qhov sib txawv tseem ceeb ntawm qhov ceev thiab qhov concentration peb tuaj yeem hais tias qhov ceev tuaj yeem muab rau tag nrho peb theem ntawm cov teeb meem thaum lub concentration yog muab rau cov tshuaj hauv cov kua theem. Ib qho ntxiv qhov sib txawv ntawm qhov ceev thiab qhov concentration yog qhov ceev tuaj yeem ua homogeneous lossis heterogeneous nyob ntawm cov khoom siv. Tab sis, concentration yog ib txwm muaj homogeneous khoom.
Summary – Ceev vs Concentration
Qhov ntom thiab concentration yog qhov tseem ceeb ntawm lub cev tsis muaj teeb meem. Lub ntsiab lus sib txawv ntawm qhov ceev thiab cov kev pom zoo yog tias qhov ntau ntawm cov teeb meem nyob rau hauv qhov teeb meem yog nyob rau ntawd, thiab dab tsi.
