Input interpretation
chromium | work function
Results
4.5 eV
polycrystalline | 4.5 eV
Threshold frequency
1.088×10^15 Hz (hertz)
Electromagnetic frequency range
NUV (near ultraviolet) | UVC
Unit conversion
7.21×10^-19 J (joules)
Comparisons as energy
≈ ( 0.17 ≈ 1/6 ) × Hartree energy ( ≈ 4.4×10^-18 J )
≈ 0.33 × Rydberg energy ( ≈ 2.2×10^-18 J )
≈ (0.5 to 2.4) × energy of a covalent bond ( 3×10^-19 to 1×10^-18 J )
Corresponding quantities
Thermodynamic temperature T from E = kT: | 52220 K (kelvins)
Photon wavelength λ from E = hc/λ: | 276 nm (nanometers)
Spectroscopic wavenumber ν^~ from ν^~ = E/(hc): | 3.629×10^6 m^(-1) (reciprocal meters) | 36295 cm^(-1) (reciprocal centimeters)