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Chapter 16: Problem 34

Would you expect the concentration of a catalyst to appear in the rate law of a catalyzed reaction? Explain.

Short Answer

Expert verified
No, the catalyst concentration would not appear in the rate law of a catalyzed reaction because a catalyst is not consumed in the reaction.

Step by step solution

01

Understanding Catalysts

A catalyst speeds up a chemical reaction process. Crucially, it does this without itself undergoing any permanent chemical change, meaning it is not used up in the process.
02

Understanding Rate Laws

In the context of chemical reactions, a rate law defines the rate of a chemical reaction in terms of the concentrations of the reactant molecules. Since a catalyst doesn't change during the reaction, its concentration doesn't impact the rate law.
03

Final Explanation

Consequently, the concentration of a catalyst would not appear in the rate law of a catalyzed reaction. Although a catalyst speeds up the reaction, its concentration doesn't change throughout the reaction, hence it is not included in the rate law.

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Most popular questions from this chapter

Explain the difference between a reaction rate and a rate law.

In the reaction $$2 \mathrm{NO}(g)+\mathrm{Br}_{2}(g) \rightarrow 2 \mathrm{NOBr}(g)$$ doubling the \(\mathrm{Br}_{2}\) concentration doubles the rate, but doubling the NO concentration quadruples the rate. Write the rate law.

Explain the effect that area has on reactions that occur on surfaces.

What unit is most commonly used to express reaction rate?

Why are reaction orders not always equal to the coefficients in a chemical equation?
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