Photons & Photoelectric effect - 1 | Early Quantum Theory
General Chemistry 1 - Photons & Photoelectric effect - 1
1) What is the wavelength of a photon with an energy of 8.26 x 10-19 J?
2) How much energy does a mole of photons with a wavelength of 550 nm? What is the frequency?
1) E = hν = ⇒ λ = = 2.41 x 10-7 m = 241 nm
2) E = nhν with n = number of photons = 1 mole of photons = 6.022 x 1023 photons
E = = 2.18 x 105 J
ν = = 5.45 x 1014 s-1