 Solution

ID: past-exam-of-the-chemistry-a-course-of-the-university-of-cambridge/2021/paper-1/a3/a/i/solution

Place the carbon and sulfur nuclei on a line separated by

r

m_{C}

and

m_{S}

. The center of mass lies between them and closer to the heavier sulfur nucleus. In the linear rigid rotor approximation,

r

remains fixed while the molecule rotates.

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