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For the decomposition of N(2) O(5), rate...

For the decomposition of `N_(2) O_(5)`, rate law is rate `=(k)[N_(2) O_(5)]` what is the significance of `k` in this equation?

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K represents the rate censtant of this reaction and `k` is equal to the rate of reaction when concentration of `(N)_(2) (O)_(5)=1 (mol) (L)^(-1)`
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