# Problem: How much energy (in kJ) do 3.00 moles of photons, all with a wavelength of 675 nm, contain?A) 532 kJ B) 177 kJ C) 238 kJ D) 418 kJ E) 354 kJ

###### FREE Expert Solution

We´re asked to determine the energy (in kJ) of 3.00 moles of photons and a wavelength of 675 nm.

Remember that the Energy and the frequency of a photon are related by the following equation:

$\overline{){\mathbf{E}}{\mathbf{=}}{\mathbf{h\nu }}}$

Where

E is the energy of the photon (in J)

h is the Planck’s constant (h = 6.626x10-34 J*s)

ν is the frequency of the photon (in s-1)

###### Problem Details

How much energy (in kJ) do 3.00 moles of photons, all with a wavelength of 675 nm, contain?

A) 532 kJ

B) 177 kJ

C) 238 kJ

D) 418 kJ

E) 354 kJ