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(B) The given reaction is $2NO_{2(g)} \longrightarrow 2NO_{(g)} + O_{2(g)}$.Molecularity is the number of reacting species taking part in an elementar

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order $2$,molecularity $2$

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(B) The given reaction is $2NO_{2(g)} \longrightarrow 2NO_{(g)} + O_{2(g)}$.Molecularity is the number of reacting species taking part in an elementary reaction,which must collide simultaneously in order to bring about a chemical reaction.Here,$2$ molecules of $NO_2$ are involved in the elementary step,so the molecularity is $2$.The rate law for this elementary reaction is $Rate = k[NO_2]^2$.Since the power of the concentration term in the rate law is $2$,the order of the reaction is $2$.Therefore,the order is $2$ and the molecularity is $2$.

What is the order and molecularity of the following reaction?
$NO_{2(g)} + NO_{2(g)} \longrightarrow 2NO_{(g)} + O_{2(g)}$

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What is the order and molecularity of the following reaction?$NO_{2(g)} + NO_{2(g)} \longrightarrow 2NO_{(g)} + O_{2(g)}$