JEE Main Chemistry question
The bond dissociation energy of H is 436 kJ/mol. A molecule of hydrogen is dissociated by radiation of wave-length 30 nm. What is the percentage of radiant energy which will be converted into kinetic energy per atom of hydrogen? Report your answer up to one decimal place
Answer: 8.9
Solution
Energy supplied by radiation per molecule:
= = = 6.62×\ J
Bond dissociation energy per molecule:
= = 7.24×\ J
Excess energy (total kinetic energy of
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