What is the energy per mole of photons of light with a frequency of

Question

Quizplus · Accepted Answer

The energy of a photon is given by the equation E = hf, where h is Planck's constant (6.626 x 10^-34 J.s) and f is the frequency of the light. Substituting the given frequency (11ea8937_ab5f_a4a8_a16d_5f0d2e8a1430_TB4499_11) into this equation gives us:

E = (6.626 x 10^-34 J.s) x (2.714 x 10^14 Hz) = 1.799 x 10^-19 J/photon

To convert this to energy per mole of photons, we need to multiply by Avogadro's number (6.022 x 10^23). Therefore:

Energy per mole = (1.799 x 10^-19 J/photon) x (6.022 x 10^23 photons/mol)

= 1.083 x 10^5 J/mol

Choice B (11ea8937_ab5f_a4aa_a16d_d9a81eaf4375_TB4499_11) is the only option that matches this value.

What Is the Energy Per Mole of Photons of Light