Chemistry · Molecular Spectroscopy
Consider the following statements regarding molecular spectroscopy: (i) If q is the displacement from equilibrium for harmonic motion, the potential energy is proportional to q. (ii) If the vibrational frequency (νe) of HCl is 2990 cm-1, its zero-point energy will be 1495 cm-1. (iii) The correct order of vibrational frequencies of O-1H (X1), O-2H (X2), and O-3H (X3) is X1 > X2 > X3. (iv) The fundamental vibrational transition of a diatomic molecule appears at 1880 cm-1. Assuming the anharmonicity constant is zero, its first overtone will be at 940 cm-1. Which of the above statements are correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1(i), (ii), and (iii) only
- 2(i), (ii), (iii), and (iv)
- 3(ii) and (iii) only✓
- 4(i), (ii), and (iv) only
Correct answer
(ii) and (iii) only
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