Teaching Haryana (HPSC) Assistant Professor Mock Test 2025 Chemical Sciences Molecular Spectroscopy Vibrational Spectra of Diatomic Molecules
For a diatomic molecule acting as an anharmonic oscillator, the vibrational wavenumber ((\(\bar{\nu}e)\)) is given as (440.0 , cm-1). The observed value of the fundamental frequency ((\(\bar{\nu}{\text{obs}}\))) is (432.7, cm-1). The magnitude of (\(\bar{\nu}_{\text{obs}}\)) (in cm-1)) for the 2nd overtone is closest to:
1
1305.0
2
1297.1
3
1276.4
4
1280.1
5
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