(1) **The rate of a chemical reaction can be written in terms of the change of concentration of reactants and products.**

$\overline{){\mathbf{Rate}}{\mathbf{}}{\mathbf{=}}{\mathbf{}}\frac{\mathbf{-}\mathbf{\u2206}\mathbf{\left[}\mathbf{reactants}\mathbf{\right]}}{\mathbf{a}\mathbf{\u2206}\mathbf{t}}{\mathbf{}}{\mathbf{=}}{\mathbf{}}\frac{\mathbf{+}\mathbf{\u2206}\mathbf{\left[}\mathbf{products}\mathbf{\right]}}{\mathbf{b}\mathbf{\u2206}\mathbf{t}}}$

**The rate of reaction in terms of O _{2} is:**

$\overline{){\mathbf{Rate}}{\mathbf{}}{\mathbf{=}}{\mathbf{}}{\mathbf{+}}\frac{\mathbf{\u2206}\mathbf{\left[}{\mathbf{O}}_{\mathbf{2}}\mathbf{\right]}}{\mathbf{\u2206}\mathbf{t}}}$

**The rate of reaction in terms of N _{2}O is:**

$\overline{){\mathbf{Rate}}{\mathbf{}}{\mathbf{=}}{\mathbf{}}{\mathbf{-}}\frac{\mathbf{\u2206}\mathbf{\left[}{\mathbf{N}}_{\mathbf{2}}\mathbf{O}\mathbf{\right]}}{\mathbf{2}\mathbf{\u2206}\mathbf{t}}}$

Consider the following reaction: 2 N_{2}O(g) → 2 N_{2}(g) + O_{2}(g). In the first 15.0 s of the reaction, 0.015 mol of O2 is produced in a reaction vessel with a volume of 0.500 L. Predict the rate of change in the concentration of N_{2}O over this time interval. In other words, what is Δ[N_{2}O]/Δt?

Frequently Asked Questions

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.

What professor is this problem relevant for?

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