The hydrogen molecule comes apart (dissociates) when it is excited internally by 4.5 eV. If this molecule behaves exactly like a harmonic oscillator with classical frequency f=8.277-10¹4 rad/s, find the vibrational quantum number corresponding to its 4.5-ev dissociation energy. Constants: h= 6.626-10-34 [J-s], ħ=h/2π, and w=f. 21.
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