Chemistry: The decomposition of nitrogen dioxide is described by the following chemical equation: 2NO_2 (g) 2NO (g) + O_2 (g) Suppose a two-step mechanism is proposed for this reaction, beginning with this elementary reaction: NO_2 (g) NO_(g) + O_(g) Suppose also that the second step of the mechanism should be bimolecular. a) Suggest a reasonable second step. That is, write the balanced chemical equation of a bimolecular elementary reaction that would complete the proposed mechanism.

The decomposition of nitrogen dioxide is described

MansellS6756

28.01.2022

The balanced chemical equation will be " $NO_{2}+O\rightarrow NO+O_{2}$ ".

Explanation:

The given equation is:

$2NO_{2}\rightarrow 2NO+O_{2}$

Step 1:

$2NO_{2}\rightarrow NO+O$ ...(equation 1)

Step 2:

$NO_{2}+O\rightarrow NO+O_{2}$ ...(equation 2)

On adding "equation 1" and "equation 2", we get

⇒ $NO_{2}+NO_{2}+O\rightarrow NO+O+NO+O_{2}$

⇒ $2NO_{2}\rightarrow 2NO+O_{2}$

The second step:

⇒ $NO_{2}+O\rightarrow NO+O_{2}$

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