Video: Yuav ua li cas hloov EVS rau angstroms?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Constants thiab hloov dua siab tshiab yam
1 Angstrom (A) sib raug rau 12398 eV (los yog 12.398 keV), thiab kev sib raug zoo yog inverse, raws li Ephoton = hν = hc/λ. Yog li, E ( eV ) = 12398/λ(A) or λ(A) = 12398/E( eV ) = 12.398/E(keV). Nco ntsoov tias koj tuaj yeem ua ke cov lus saum toj no rau qhov tseeb los cuam tshuam cov wavelengths rau qhov kub thiab txias.
Tom qab ntawd, ib tug kuj yuav nug, yuav ua li cas koj hloov joules rau angstroms?
1 Angstrom = 10-10 m = 10-8 cm.
- 1 joule = 2.39 x 10-1 calorie ntau ntau.
- 1 Jul = 107 ua ergs.
- 1 eV = 1.602177x10-12 luas = 1.602177x10-19 Joule.
- 1 Solar Luminosity = 3.826x1033 luas = 3,826 x 1026 luas = 3,826 x 1026 Watts.
- Sun's Absolute Magnitude V = 4.83, B = 5.48, K = 3.28.
- Vega's Absolute Magnitude V = 0.58, B = 0.58, K = 0.58.
Ib sab saum toj, yuav ua li cas hloov eV rau kJ mol? Rau convert ev / atom kJ / mol , ua ntej hloov nws rau kJ ua / atom siv 1 eV = 1.6021765×10?²² kJ ua (1/1000 ntawm JB tus nqi rau joules) thiab tom qab ntawd muab faib los ntawm Avogadro tus lej 6.0221468 × 10²³. Los yog muab ob kauj ruam thiab hloov rau kJ ua los ntawm kev muab faib los ntawm 96.484934. Tom qab ntawd hloov mus kcal/ mol faib 4.184.
Ib yam li ntawd, koj yuav suav cov wavelength ntawm eV li cas?
Kuj xam tus wavelength ntawm ib tug dawb electron nrog ib tug kinetic zog ntawm 2 eV . Teb: Cov wavelength ntawm a 2 eV photon yog muab los ntawm: l = h c / Eph Luas = 6,625 x 10-34 x3x 108/(1.6 x 10-19 x 2) = 621 nm.
Koj pom lub zog ntawm photon hauv eV li cas?
Tam sim no peb ua tau xam lub zog ntawm ib tug photon los ntawm ob lub version ntawm Planck's kev sib npaug : E = hf or E = hc / λ. Feem ntau peb siv cov units ntawm eV , los yog hluav taws xob volts , raws li cov units rau photon zog , tsis yog joules. Koj tuaj yeem siv h = 4.1357 × 10-15 eV s, uas ua rau muaj kev tsim nyog ntau dua zog scale rau photons.
Pom zoo:
Yuav ua li cas yog rau cov ntaub ntawv nug uas yuav tsum tau kawm nyob rau hauv ib tug ua txhaum cai?
Qee yam ntawm cov ntaub ntawv nug uas raug kuaj xyuas cov ntaub ntawv pov thawj tau hais hauv qab no. • Xav. • Tshawb xyuas. • Cov Nyiaj Txiag Nyiaj Txiag. • Daim ntawv cog lus. • Cov ntawv txais nyiaj. • Tub Sab Nraud. • Kev dag ntxias. • Kev cuav. • Kev tua tus kheej. • Kev tua neeg. • Nto nta. • Cov duab latent. • Kev hloov pauv. • Watermarks. • Ink stamps
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