Question

Calculate the energy of a mole of photons of radiation whose frequency is 15x10 14 Hz?

Answer 1

e=energy

f=frequency

h=Planck's constant

PLANCK'S CONSTANT=6.625×10-³⁴ J/sec(it is -34)

e=h×f

e=(6.625×10-³⁴)×(15×10¹⁴)

e=6.625×15×10-³⁴×10¹⁴

e=99.375×10-²⁰ (it is -20 in power)