Problem: A photon of ultraviolet (UV) light possesses enough energy to mutate a strand of human DNA. What is the energy of a single UV photon and 1 mole of UV photons having a wavelength of 25 nm? 1 mol UV photons = 6.022 x 1023 UV photons.

FREE Expert Solution

E=hv (1)

where:

h = Planck’s constant (6.626 × 10–34 J • s)

v = frequency (in s–1)


λ=cv (2)

where:

c = speed of light (3.0 × 108 m/s)


E=hcλ (3)

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A photon of ultraviolet (UV) light possesses enough energy to mutate a strand of human DNA. What is the energy of a single UV photon and 1 mole of UV photons having a wavelength of 25 nm? 1 mol UV photons = 6.022 x 1023 UV photons.

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