For the wave of light you generated in the part b, calculate the amount of energy in 1.0 mol of photons with that same frequency (6.8×109 hz ) and wavelength (0.044 m ). recall that the avogadro constant is 6.022×1023 mol−1. express the energy in joules to two significant figures.

2.7 J

Explanation:

The energy of one photon is given by

where

h is the Planck constant

f is the frequency

For the photons in this problem,

So the energy of one photon is

The number of photons contained in 1.0 mol is

(Avogadro number)

So the total energy of photons contained in 1.0 mol is

answer: 31, 5556. 952 seconds