Answer to Question #228353 in Inorganic Chemistry for Prashant

Question

the given E0,E1 and E2 are the ground ,first and second electronic energy levels of the molecule.the energy gap between E0 to E2 is 50000cm-1 .a wavelength of 400nm is needed to excite the molecule from E0 to E1.sketch the energy level and calculate the wavelength of the radiation required for E1 to E2

Answer 1

The difference in energy between the two energy levels is 2.3eV.

To find: The frequency of radiation emitted when the atom makes a transition between the energy levels.

The energy between the energy levels is

E=2.3eV

⇒2.3×1.6×10

−19

J

The frequency of the radiations emitted during transition is:

E=hν

ν=

E

h

​

⇒

2.3×1.6×10

−19

6.626×10

−34

⇒5.5×10^ 14 Hz