Balanced equation : 2K + Cl2 > 2KCL.
Delta energy on labelled diagram is attached below
Answer: The energy of a mole of photon associated with this frequency is 
Explanation:
The energy and frequency are related by :

E = energy of photon
N = number of moles = 1
h = planks constant = 
= frequency = 

The energy of a mole of photon associated with this frequency is 
country of origin and chemical makeup