# Problem: Dinitrogen monoxide decomposes into nitrogen and oxygen when heated. The initial rate of the reaction is 2.4 × 10−2 M/s. What is the initial rate of change of the concentration of N2O (that is, Δ[N2O]/Δt)?2 N2O(g) → 2 N2(g) + O2(g)

###### FREE Expert Solution
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###### FREE Expert Solution

Recall that for a reaction aA  bB, the rate of a reaction is given by:

$\overline{){\mathbf{Rate}}{\mathbf{=}}{\mathbf{-}}\frac{\mathbf{1}}{\mathbf{a}}\frac{\mathbf{\Delta }\mathbf{\left[}\mathbf{A}\mathbf{\right]}}{\mathbf{\Delta t}}{\mathbf{=}}\frac{\mathbf{1}}{\mathbf{b}}\frac{\mathbf{\Delta }\mathbf{\left[}\mathbf{B}\mathbf{\right]}}{\mathbf{\Delta t}}}$

We can simply do a rate-to-rate comparison based on the stoichiometric coefficients.

Reaction: dinitrogen monoxide → nitrogen and oxygen

Reaction: 2 N2O(g) → 2 N2(g) + O2(g)

Given:

Since N2O is a reactant, the rate should be negative since reactants are used up/consumed

96% (349 ratings)
###### Problem Details

Dinitrogen monoxide decomposes into nitrogen and oxygen when heated. The initial rate of the reaction is 2.4 × 10−2 M/s. What is the initial rate of change of the concentration of N2O (that is, Δ[N2O]/Δt)?

2 N2O(g) → 2 N2(g) + O2(g)

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Average Rate of Reaction concept. You can view video lessons to learn Average Rate of Reaction Or if you need more Average Rate of Reaction practice, you can also practice Average Rate of Reaction practice problems .

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Based on our data, we think this problem is relevant for Professor Sra's class at UTD.