Question

equation has bond length equation. Calculate the wavenumbers of the first four lines in its microwave spectrum. 

[Given: mass of C=12.000 u and mass of N=14.007 u]

21 Jan 2026
Answer :
Word Count : 170
For a diatomic rigid rotor, the rotational energy levels are (E_J = BJ(J+1)) and the allowed microwave transitions satisfy (\Delta J = +1). The corresponding wavenumbers are (\tilde{\nu}_{J \to J+1} = 2B(J+1)). The bond length of (\text{CN}^+) is (r = 129,\text{pm} = _________ _____ ________ _______ __________.
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