Photochemical reaction rate does not depend significantly on temperature, because____________________?
Correct answer: A. The energy of reacting molecules exceeds the activation energy by absorption of light
- A. The energy of reacting molecules exceeds the activation energy by absorption of light
- B. It is an exothermic reaction
- C. It is a reversible reaction
- D. None of these
Explanation
Absorption of light supplies the reacting molecules with energy directly, often raising them above the activation-energy barrier. Consequently, the rate is much less dependent on temperature than an ordinary thermally activated reaction.
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