Indian Forest Service (Mains), Chemistry optional · 2022 · Paper II

Q5(d). CO bond length from rotational spacing

Question

Rotational lines of CO are separated by 3.84 cm⁻¹. Calculate its bond length.

Taking ¹²C¹⁶O as a rigid rotor gives r ≈ 1.13 Å.

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Coversrotational spectroscopyrigid rotorbond length of COrotational constant Bmicrowave spectrum