For the wave of light you generated in part B, calculate the amount of energy in 1.0 mole of photons with the same frequency (1.3 x10^10 Hz)

Question

For the wave of light you generated in part B, calculate the amount of energy in 1.0 mole of photons with the same frequency (1.3 x10^10 Hz) and the wavelength (0.026 m). Recall that the avogadro constant is 6.022 x 10^23 mol -1

Answer 1

Energy of a single photon = hν

h = 6.626x10^-34 Jsec

ν = 1.3x10¹⁰ sec^-1

E = (6.626x10^-34 Jsec) (1.3x10¹⁰ sec^-1)

E = 8.614x10^-24 J

To find the energy per mole of photons, we have ...

8.614x10^-24 J / photon x 6.02x10²³ photons / mol = 5.19 J per mole of photons