Simulated rotational (microwave) spectra are generated for one or more of the diatomic m...

Simulated rotational (microwave) spectra are generated for one or more of the diatomic molecules ¹²C¹⁶O, ¹H¹⁹F, ¹H³⁵Cl, ¹H⁷⁹Br, and ¹H1²⁷I. Using a slider, the temperature is varied. The J value corresponding to the maximum intensity peak is determined and compared with the prediction from the formula

The number of peaks that have an intensity greater than half of that for the largest peak is determined at different temperatures. The frequencies of the peaks are then used to generate the rotational constants B and α_e.