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What is the activation energy for the de...

What is the activation energy for the decomposition of `N_(2)O_(5)` as
`N_(2)O_(5) hArr 2NO_(2)+1/2 O_(2)`
If the values of the rate constants are `3.45 xx 10^(-5)` and `6.9 xx 10^(-3)` at `27^(@)C` and `67^(@)C` respectively

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