The Rotation Spectrum of the HCl Molecule Suggests a Photon

question 8

Multiple Choice

The rotation spectrum of the HCl molecule suggests a photon in the far infrared (around 5.0 × 10−⁶ m) can excite the first rotational level. From this data, the moment of inertia of the HCl molecule (in kg ⋅ m²) is

• A) 2.8 × 10−⁴⁸
• B) 2.8 × 10−⁴⁹
• C) 2.8 × 10−⁴⁷
• D) 2.8 × 10−⁴⁶
• E) 2.8 × 10−⁴⁵

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Definitions:

Opportunity Cost

The advantages that a person, investor, or company forfeits when they opt for one option instead of another.

Outboard Motors

Engines mounted on the outside of the stern of a boat, used to propel the vessel through the water.

Opportunity Cost

The cost of forgone alternatives when one option is chosen over another.

Outboard Motors

Engine units mounted externally on the rear of a boat, providing propulsion through the water.