Calculate energy of one mole of photons
of radiation whose frequency is 5 ×1014
Hz.
Dear Student,
Energy of one photon is given by the expression
E = h
where, h = Planck's constant = 6.636 x 10-34 J s-1
= Frequency of radiation = 5 x 1014 Hz = 5 x 1014 s-1.
E = (6.636 x 10-34 J s-1 x 5 x 1014 s-1) = 33.18 x 10-20 J
One mole of photon = 6.023 x 1023 photons
Therefore, Energy of one mole of photon = (6.023 x 1023 x 33.18 x 10-20 J) = 199.84 x 103 J
Energy of one mole of photon = 199.84 kJ.
Hope its helpful.
Enjoy learning!!