Solution:
Boltzmann Relation: the Boltzmann relation describes the number density of an isothermal charged particle fluid when the thermal and the Electrostatic forces acting on the fluid have reached equilibrium.
N1/No = exp (-Ea/RT) N1 is the number in the excited state and No is number in the ground state; Ea is the energy separating the two in J (9.2×1000), T in K =298.2 K: R= 8.3145 J/mol K
N1/No = exp(-(9200)/(298.2×8.3145) = exp -3.71 = 0.024
