How do you calculate from tabulated standard enthalpies of

Solution: According to Planck’s quantum theory of radiation, the amount of energy associated with a quantum(in case of light, the quantum of energy is often called photon) of radiation is proportional to the frequency of light, E = h ---(1), where h is a universal constant called Planck’s constant. is the frequency and E is the energy of a photon. Or, E = hc/ -------(2), where, is the wavelength of light and c is the velocity. Step1: a) Given, wavelength of the light = 325 nm = 325 x 10 m -9 [1 nm = 10 m] -9 -7 = 3.25 x 10 m P