Qhov sib txawv ntawm emission spectrum thiab absorption spectrum

Dab tsi yog emission thiab absorption spectra?

Emission thiab absorption spectra yog graphical sawv cev ntawm lub zog radiant emitted los yog absorbed los ntawm ib yam tshuaj. Ob hom spectra yog siv los txheeb xyuas lub cev thiab tshuaj lom neeg ntawm cov ntsiab lus thiab cov tebchaw.

Emission spectra

Emission spectra yog tsim los ntawm emission ntawm lub zog los ntawm ib yam khoom thaum zoo siab los ntawm lwm qhov chaw, xws li nplaim taws lossis hluav taws xob arc. Electrons nyob rau hauv cov khoom dhia mus rau siab dua orbitals thiab tso tawm lub zog nyob rau hauv daim ntawv ntawm lub teeb. Txhua yam tshuaj muaj ib tus qauv ntawm cov kab emissions tshwj xeeb uas tuaj yeem siv los txheeb xyuas qhov muaj ntawm cov khoom ntawd hauv cov qauv.

Piv txwv ntawm emission spectrum

Hauv qhov piv txwv no, emission spectrum ntawm hydrogen tau qhia. Txhua kab nyob rau hauv lub spectrum sawv cev rau ib tug tshwj xeeb kev hloov ntawm ib tug electron ntawm ib lub orbit mus rau lwm tus. Cov kev hloov pauv no tso tawm lub zog nyob rau hauv daim ntawv ntawm lub teeb, thiab txhua kab sib haum mus rau ib lub wavelength tshwj xeeb.

Absorption spectrum

Absorption spectra yog tsim los ntawm kev nqus ntawm lub zog radiant los ntawm ib yam khoom. Cov spectra no muaj txiaj ntsig zoo rau kev txheeb xyuas cov khoom tsis paub, txij li txhua lub ntsiab lus thiab cov khoom sib xyaw absorbs radiant zog ntawm ib lub wavelength. Ib qho kev nqus spectrum qhia cov ntsiab lus ntawm emission spectrum qhov twg nqus tau tshwm sim.

Piv txwv ntawm absorption spectrum

Hauv qhov piv txwv no, qhov nqus spectrum ntawm cov ntsev molten yog qhia. Cov kab tsaus nti ntawm lub spectrum qhia tau hais tias cov ntsev tau nqus lub zog hluav taws xob ntawm qhov tshwj xeeb wavelength.

Cov Lus Xaus

Ob qho emission thiab absorption spectra yog cov cuab yeej tseem ceeb hauv kev txheeb xyuas cov ntsiab lus thiab cov khoom sib txuas. Emission spectra yog tsim los ntawm emission ntawm radiant zog, thaum nqus spectra yog tsim los ntawm kev nqus ntawm lub zog radiant. Ob hom spectra muaj cov qauv tshwj xeeb rau txhua lub ntsiab lus thiab cov khoom sib xyaw ua ke, ua kom yooj yim los txheeb xyuas cov khoom tsis paub.

• Emission spectrum: Cov duab sawv cev ntawm lub zog radiant emitted los ntawm ib yam khoom thaum zoo siab los ntawm lwm qhov chaw, xws li nplaim taws lossis hluav taws xob arc.
• Absorption spectrum: Cov duab sawv cev ntawm lub zog radiant uas ib yam khoom absorbs.
• Kev txheeb xyuas cov ntsiab lus thiab cov khoom sib xyaw: Emission thiab absorption spectra muaj cov qauv tshwj xeeb rau txhua lub ntsiab lus thiab cov khoom sib xyaw, ua kom yooj yim los txheeb xyuas cov khoom tsis paub.