a.) The spacings of the rotational fine structure lines of carbon dioxide 12C16O2 are determined from IR spectroscopy to be 0.7604 cm-1. Calculate the C=O bond length of the molecule (given masses: m(12C) = 12 amu, m(16O) = 15.9949 amu). Ans = ________ Angstroms b.) A molecule in a gas undergoes 3e+09 collisions in each second. Suppose that(i) every collision is effective in deactivating the molecule rotationally. Calculate the linewidth of rotational transitions in the molecule.   Ans = _________ MHz(ii) Suppose that 1 collisions in 10 are effective. Ans =  _______  MHz

Question

a.) The spacings of the rotational fine structure lines of carbon dioxide 12C16O2 are determined from IR spectroscopy to be 0.7604 cm-1. Calculate the C=O bond length of the molecule (given masses: m(12C) = 12 amu, m(16O) = 15.9949 amu).
 Ans = ________ Angstroms

b.) A molecule in a gas undergoes 3e+09 collisions in each second. Suppose that
(i) every collision is effective in deactivating the molecule rotationally. Calculate the linewidth of rotational transitions in the molecule.   Ans = _________ MHz
(ii) Suppose that 1 collisions in 10 are effective. Ans =  _______  MHz

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