Write the rate law for the following elementary reaction:2NO(g) + O2(g) → 2NO2(g)Use k1 to stand for the rate constant.
Question
Write the rate law for the following elementary reaction:2NO(g) + O2(g) → 2NO2(g)Use k1 to stand for the rate constant.
Solution
The rate law for an elementary reaction can be written directly from the stoichiometry of the reaction. The rate law is an expression that shows the rate of a reaction as a function of the concentrations of its reactants.
For the given reaction: 2NO(g) + O2(g) → 2NO2(g)
The rate law would be: Rate = k1[NO]^2[O2]
Here, k1 is the rate constant, [NO] is the concentration of NO, and [O2] is the concentration of O2. The exponents (in this case 2 for NO and 1 for O2) are equal to the stoichiometric coefficients in the balanced chemical equation.
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