Calculate energy of one mole of photons of radiation whose frequency as 5 × 1014Hz.
199.51 KJ
One thing we have to keep in mind here.
1 mole = 6.022 × 1023
Now E = hν
= (6.626 × {10}^{-34} Js) (5 × 1014 s−1)
= (3.313 × 10−19)
Energy of one mole of photons
= (3.313 × 10−19 J)(6.022 × 1023 mol−1)
= 199.51 KJ mol−1