Question: 1. Consider an HCl molecule. The force constant for the HCl bond is 481 N/m. The typical HCl bond length is 130 pm. (a)

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1. Consider an HCl molecule. The force constant for the HCl bond is 481 N/m. The typical HCl bond length is 130 pm. (a) How much energy is required to excite an HCl molecule from its ground rotational state to its first excited rotational state? (b) Where would this spectral line occur (give an answer in wavenumbers)? What region of the electromagnetic spectrum is this?

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