Answer to Question #134414 in General Chemistry for huh

Question

Calculate the energy of a single photon of light with a frequency of 3.00×1016 s-1.

Answer 1

The energy of a single photon can be calculated using Planck equation:

E = hf

where E - photon energy, h - Planck constant (h = 6.626 × 10^-34 J s ), f - photon frequancy

From here:

E = 6.626 × 10^-34 J s × 3.00 × 10¹⁶ s^-1 = 19.878 × 10^-18 J = 1.99 × 10^-17 J

Answer: 1.99 × 10^-17 J