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Question
From the rate expression for the following reaction, determine the order of reaction and the dimension of the rate constant.
\[\ce{3NO_{(g)} -> N2O_{(g)}}\] Rate = k[NO]2
Solution
Given rate = k[NO]2
Therefore, the order of the reaction = 2
Dimension of k = `"Rate"/["NO"]^2`
= `("mol L"^(-1) "s"^(-1))/("mol L"^(-1))^2`
= `("mol L"^(-1) "s"^(-1))/("mol"^2 "L"^(-2))`
= L mol−1 s−1
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