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← ScienceWhich outcome occurs when excessive vibrational energy is absorbed by polyatomic molecule?
A)Bond dissociation triggers chemical reaction✓
B)Increased fluorescence emission intensity
C)Decreased thermal conductivity through lattice
D)Enhanced molecular polarization and higher dipole
💡 Explanation
When vibrational energy exceeds a bond's dissociation energy, a bond breaks because the energy input surpasses the binding energy, initiating a chemical reaction. Therefore, bond dissociation reaction is triggered, rather than fluorescence, reduced conductivity, or polarization, which don't depend on bond rupture.
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