The Dissociation Energy Is the Energy Required to Separate the Two

question 18

Multiple Choice

The dissociation energy is the energy required to separate the two atoms in a diatomic molecule in their ground state. If the dissociation energy of molecular oxygen is 7.2 eV, then calculate the maximum wavelength of light from the Sun that can break apart atmospheric O₂.

• A) 1.7 × 10^-7 nm
• B) 1.7 × 10^-8 m
• C) 1.7 × 10^-9 m
• D) 1.7 × 10^-7 m
• E) 1.7 × 10² m

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