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There is formation of H(2)O(2) in the up...

There is formation of `H_(2)O_(2)` in the upper atmosphere.
`H_(2)O+O to 2 OH to H_(2)O_(2)`
`DeltaH=72Kj mol^(-1)`, `E_(a)=77Kjmol^(-1)`
What will be the `E_(a)` for bimolecular recombination of two `OH` radicals to form `H_(2)O` and `O` in `Kj`.

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