Answer to Question #150913 in General Chemistry for Lyna Moinifar

Question

What is the the energy (in Joules per photon) of ultraviolet radiation that has a wavelength of 1.667e-7 meters? The speed of light is 3.00x10 8 m/s and Planck's constant is 6.626x10 -34 J*s.

Key Concept:Energy of a photon is related to the frequency, ν, and wavelength, λ. E = h*ν = hc/λ where c is the speed of light.

Answer 1

E= hc/λ

E = 6.626 ×10^-34 × 3 × 10⁸ / (1.667 ×10^-7)

E = 1.19 × 10^-18J