Calculate energy of one mole of photonsof radiation whose frequency is

1.	Calculate energy of one mole of photonsof radiation whose frequency is 5 xl0Hz.14phSe
Answer» Energy of one photon is given by the expression E = hV where, h = Planck's constant = 6.636 x 10^-34 J s-1V = Frequency of radiation = 5x 10^14 Hz= 5 x 10^14 s-1. E= (6.636 x 10^-34 J s-1 x 5 x 10^14 s-1) = 33.18 x 10^-20J One mole of photon = 6.023 x 10^23 photons Therefore, Energy of one mole of photon = (6.023 x 10^23 x 33.18 x 10^-20 J) = 199.84 x 10^3J Energy of one mole of photon = 199.84 kJ

Calculate energy of one mole of photonsof radiation whose frequency is 5 xl0Hz.14phSe

Answer»

Energy of one photon is given by the expression E = hV

where, h = Planck's constant = 6.636 x 10^-34 J s-1V = Frequency of radiation = 5x 10^14 Hz= 5 x 10^14 s-1.

E= (6.636 x 10^-34 J s-1 x 5 x 10^14 s-1) = 33.18 x 10^-20J

One mole of photon = 6.023 x 10^23 photons

Therefore, Energy of one mole of photon = (6.023 x 10^23 x 33.18 x 10^-20 J) = 199.84 x 10^3J

Energy of one mole of photon = 199.84 kJ