Question

The pure rotational spectrum of 1H131I consists of a series of lines separated by 13.10 cm−1

Calculate

(a) the moment of interia, and

(b) the internuclear distance.

Answer 1

Moment of inertia = r^2

= 13.1^2

= 171.61 kg. cm^2

Internuclear distance = 171.61/131×13.1 × 10^1

= 171.61pm