A hydrogen diatomic molecule, modeled as a rigid molecule, revolves around a vertical rotational axis as shown in the figure. The separation distance between the two hydrogen atoms is 0.74 Å. Calculate the angular frequency at 350 K of the hydrogen molecule revolving about the vertical axis.

• A. 3.2 × 10⁴ rad/s
• B. 5.4 × 10⁵ rad/s
• C. 4.6 × 10¹³ rad/s
• D. 8.1 × 10¹⁴ rad/s

Answer: (C)