Qhov sib txawv tseem ceeb ntawm kev nruam spectrum thiab kab spectrum yog qhov nruam spectrum muaj tag nrho cov wavelengths nyob rau hauv ib tug muab ntau yam whereas kab spectrum tsuas muaj ob peb wavelengths.
Muaj ob hom spectrum ua ntu ntu thiab kab spectrum. Kab spectrum tuaj yeem tsim ib qho kev nqus spectrum lossis emission spectrum. Kev nqus thiab emission spectra ntawm ib hom pab txheeb xyuas cov hom thiab muab cov ntaub ntawv ntau txog lawv.
Nruam Spectrum yog dab tsi?
Thaum nqus thiab emission spectra ntawm ib hom muab tso ua ke, lawv tsim cov spectrum tas li. Ib qho kev nqus spectrum yog ib zaj duab xis kos ntawm absorbance thiab wavelength. Qee lub sij hawm es tsis txhob wavelength, peb tuaj yeem siv zaus lossis yoj tus lej hauv x-axis. Log absorption tus nqi lossis tus nqi sib kis kuj tseem ceeb rau y-axis hauv qee lub sijhawm. Qhov nqus spectrum yog yam ntxwv rau ib qho molecule los yog atom. Yog li ntawd, peb tuaj yeem siv nws los txheeb xyuas lossis lees paub tus kheej ntawm ib hom tsiaj.
Daim duab 01: Nruam Spectra
Yog li, yog tias tag nrho cov wavelengths tam sim no nyob rau hauv ib qho kev txwv, qhov ntawd yog qhov txuas mus ntxiv. Piv txwv li, zaj sawv muaj tag nrho xya xim, thiab nws yog ib qho txuas ntxiv. Nruam spectrum cov ntaub ntawv thaum cov khoom kub xws li hnub qub, lub hli emit electromagnetic radiations ntawm tag nrho cov wavelengths.
Kab Spectrum yog dab tsi?
Raws li lub npe hais, kab spectrum tsuas muaj ob peb kab xwb. Hauv lwm lo lus, lawv muaj ob peb wavelengths. Piv txwv li, ib qho xim sib xyaw pom tau rau peb lub qhov muag hauv cov xim tshwj xeeb vim nws nqus lub teeb los ntawm qhov pom ntau yam. Qhov tseeb, nws nqus cov xim sib xyaw ua ke ntawm cov xim peb pom. Piv txwv li, peb pom ib yam khoom raws li ntsuab vim nws nqus ntshav lub teeb los ntawm qhov pom ntau yam. Yog li, ntshav yog xim ntsuab ntawm ntsuab.
Daim duab 02: Kab spectra rau Emissions ntawm Sodium thiab Calcium
Ib yam li ntawd, atoms lossis molecules kuj nqus qee qhov wavelengths los ntawm hluav taws xob hluav taws xob (cov wavelengths no tsis tas yuav tsum nyob rau hauv qhov pom ntau). Thaum ib lub teeb hluav taws xob hluav taws xob hla dhau los ntawm cov qauv uas muaj cov atoms gaseous, tsuas yog qee qhov wavelengths yog absorbed los ntawm atoms. Yog li ntawd, thaum peb sau cov spectrum, nws muaj ib tug xov tooj ntawm nqaim heev nqus kab. Thiab qhov no yog ib qho kev nqus kab spectrum. Nws yog yam ntxwv ntawm ib hom atom. Cov atoms siv lub zog nqus los ua kom cov av electrons mus rau qib siab hauv atom. Txij li thaum lub zog sib txawv yog discrete thiab tas li, tib hom atoms yuav ib txwm nqus tib lub wavelengths los ntawm cov hluav taws xob muab. Thaum cov hluav taws xob zoo siab no rov qab los rau hauv av, nws emits cov hluav taws xob absorbed, thiab nws yuav tsim ib qho emission kab spectrum.
Qhov txawv ntawm Nruam Spectrum thiab Kab Spectrum yog dab tsi?
Nruam spectrum yog ib lub spectrum uas muaj tag nrho cov wavelengths nyob rau hauv ib tug muab txwv whereas kab spectrum yog ib tug spectrum muaj ib co kab ntawm wavelengths nyob rau hauv ib tug muab kev txwv. Yog li, qhov nruam spectrum thiab kab spectrum txawv ntawm ib leeg raws li muaj lossis tsis muaj kab hauv spectrum. Yog li ntawd, peb tuaj yeem txiav txim siab qhov no yog qhov sib txawv tseem ceeb ntawm qhov txuas txuas ntxiv thiab kab spectrum. Cov kab no tshwm sim nyob rau hauv kab spectrum vim nws tsuas muaj ob peb lub wavelengths thaum nruam spectrum muaj tag nrho cov wavelengths nyob rau hauv ib tug muab ntau yam.
Thaum xav txog kev tsim ntawm txhua lub spectrum, peb tuaj yeem pom lwm qhov sib txawv ntawm qhov txuas txuas ntxiv thiab kab spectrum. Ntawd yog, hauv kev tsim cov spectrum tas mus li, ob qho tib si nqus thiab emission spectrum ntawm ib hom yog muab tso ua ke whereas qhov nqus los yog emission spectrum generates kab spectrum.
Summary – Nruam Spectrum vs Kab Spectrum
Nruam spectrum thiab kab spectrum yog ob hom kev nqus thiab emission spectrum. Qhov sib txawv tseem ceeb ntawm kev nruam spectrum thiab kab spectrum yog tias qhov nruam spectrum muaj tag nrho cov wavelengths nyob rau hauv ib tug muab ntau yam whereas kab spectrum tsuas muaj ob peb wavelengths.
