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Activation Energy

In gaseous re...

Question

In gaseous reactions important for the understanding of the upper atmosphere H₂O and O react bimolecularly to form two OH radicals. for this reaction is 72kJ at 500 K and E_a is 77 kJ mol^-1, then E_a for the bimolecular recombination of two OH radicals to form H₂O and O is:

A

$3$ kJ mol^-1

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B

$4$ kJ mol^-1

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C

$5$ kJ mol^-1

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D

$7$ kJ mol^-1

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Solution

The correct option is C
$5$ kJ mol^-1

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