Subject: Physical Chemistry · Chapter: Physical Spectroscopy · Topic: Physical Spectroscopy – General · Exam: JAM 2001-2022 · Marks: 2 · Difficulty: Medium
The separation of energy levels in the rotational spectrum of CO is $3.8626 \mathrm{cm}^{-1}$. The bond length (assume it does not change during rotation) of CO in Å (rounded off to two decimal places) is ____ .
\[ \left(\mathrm{Given: Planck'sconstant~} \mathrm{h}=6.626 \times 10^{-34} \mathrm{Js} ; \mathrm{N}_{\mathrm{A}}=6.022 \times 10^{23} \mathrm{mol}^{-1} ; \text { atomic mass of C is } 12 \mathrm{g} \mathrm{mol}^{-1} ; \text { atomic mass of O is } 16 \mathrm{g} \mathrm{mol}^{-1} ; \mathrm{c}=3 \times 10^{8} \mathrm{m} \mathrm{s}^{-1}\right) \]
Answer
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