Below is the morse potential for a diatomic molecule a. The dissociation energy

Question

Below is the morse potential for a diatomic molecule a. The dissociation energy for this molecule is approximately _____eV. b. The bond between the two atoms is "broken" when it reaches approximately _____A. c. The transition marked A is between quantum number _____and _____ d. This transition should occur in the _____region of the electromagnetic spectrum. e. The transition marked B will occur at (higher or lower) _____energy than that marked A. f The morse potential is an improvement on which model system?_____

Explanation / Answer

a. 4.8 eV (Aprox.)

b. 3.3 A.

c. 1 and 2. (Lowest is 0)

d. The energy associated is 0.5 eV (0.8 to 1.3 eV).

    The relation between the wavelength () of an electromagnetic wave expressed in nm and energy (E) associated with the wave expressed in eV is calculated as

     1 eV = 1.24 * 10-3 nm

So, 0.5 eV =(1.24 * 10-3 nm)/ 0.5 = 0.00248 nm

So, this emmission is in the X-ray region.

e. The energy associated is 0.2 eV (3.9 to 4.1 eV).

f. Harmonic Oscillator Model.

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