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4 cards from this section. Quick, good the night before a test.
Define molecularity.
Think about how many molecules are actually reacting.
What is an elementary step in a reaction?
Consider each step in a chemical reaction.
What is the molecularity of the reaction A + B → products?
Count how many reactants are present.
True or False: A termolecular reaction is common in chemical kinetics.
Consider how difficult it is for three particles to collide at once.
Devise a hypothetical reaction mechanism that includes at least one unimolecular and one bimolecular step. Then, derive the overall rate law.
Identify the rate-determining step before combining rate laws.
Discuss why understanding the molecularity of steps helps in designing efficient catalysts in industrial chemical processes.
Link molecularity to collision theory for better catalyst design.
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