Which factor does NOT affect the rate of a chemical reaction?
Understand the Problem
The question is asking us to identify which of the listed factors does not influence the speed at which a chemical reaction proceeds. We need to consider the impact of each factor on reaction rates.
Answer
Molecular weight of reactants.
The factor that does not affect the rate of a chemical reaction is the molecular weight of the reactants.
Answer for screen readers
The factor that does not affect the rate of a chemical reaction is the molecular weight of the reactants.
More Information
While the molecular weight influences molecular behavior, it does not alter the collision frequency or energy that leads to a reaction.
Tips
Be careful not to confuse molecular weight with other factors such as concentration or temperature, which directly influence reaction rates.
Sources
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