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In the decompoistion of N(2)O(5)(g), 2...

In the decompoistion of `N_(2)O_(5)(g)`,
`2N_(2)O_(5)(g)overset(k_(obs))rarr4NO_(2)(g) + O_(2)(g)`,
the observed rate law is given by
`(d[O_(2)])/(dt) = k_(obs)[N_(2)O_(5)]`.
Which of the following proposed mechanics is conisstent with the rate law?

A

`N_(2)O_(5)(g)overset(k)rarrN_(2)O_(3)(g) + O_(2)(g)`

B

`N_(2)O_(5)(g)overset(k_(2))rarrNO_(2)(g) + NO_(3)(g)`

C

`N_(2)(g) + NO_(3)(g)overset(k_(1))rarrNO(g) + NO_(2)(g)+O_(2)(g)`

D

`NO_(3)(g) + NO(g)overset(k_(2))rarr 2NO_(2)(g)`

Text Solution

Verified by Experts

The correct Answer is:
A
`N_(2)O_(5)(g)overset(k_(1))rarrN_(2)O_(3)(g) + O_(2)(g)`
`rArr Rate = k_(1)[N_(2)O_(5)] = (+d[O_(2)])/(dt)`
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