How to determine molecularity?
Understand the Problem
The question is asking for the method or criteria to determine the molecularity of a chemical reaction, which refers to the number of reactant molecules involved in an elementary step of a reaction.
Answer
By adding the coefficients of the reactants in an elementary step.
Molecularity is determined by adding the coefficients of the reactants in an elementary reaction step.
Answer for screen readers
Molecularity is determined by adding the coefficients of the reactants in an elementary reaction step.
More Information
Molecularity can only be defined for elementary reactions, not for complex reactions that occur through multiple steps.
Tips
Avoid confusing molecularity with reaction order; molecularity is concerned with single elementary steps whereas reaction order is determined experimentally and can be for overall reactions.
Sources
- What is Molecularity? Definition & Examples - Study.com - study.com
- Molecularity and Kinetics - Chemistry LibreTexts - chem.libretexts.org
- Order and molecularity of reaction - BYJU'S - byjus.com
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