calculate energy of one mole of photons of radiation whose frequency is `5xx10^(14) hz`

Explanation

Energy of one photon, `E = hv = (6.626 xx 10^(-34) Js) (5 xx 10^(14) s^(-1)) = 3.313 xx 10^(-19) J`
`:.` Energy of one mole of photons `= (3.313 xx 10^(-19)J) xx (6.022 xx 10^(23) mol^(-1)) = 19951 J mol^(-1)`
`= 19.951 kJ mol^(-1)`