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Order of a Reaction (Order vs. Molecularity) Video Lecture | Chemistry for JEE Main & Advanced

FAQs on Order of a Reaction (Order vs. Molecularity) Video Lecture - Chemistry for JEE Main & Advanced

1. What is the difference between order of a reaction and molecularity?

Ans. The order of a reaction refers to the sum of the powers of the concentration terms in the rate law equation, while molecularity is the number of molecules or ions reacting in an elementary step of a reaction.

2. How do you determine the order of a reaction experimentally?

Ans. The order of a reaction can be determined by conducting experiments where the initial concentrations of reactants are varied and the corresponding rates of reaction are measured.

3. Can the order of a reaction be predicted based on the balanced chemical equation?

Ans. No, the order of a reaction cannot be predicted based solely on the balanced chemical equation. Experimental data is required to determine the order of a reaction.

4. What does a fractional order of a reaction indicate?

Ans. A fractional order of a reaction indicates that the rate of reaction is not directly proportional to the concentration of a reactant. This suggests a more complex reaction mechanism.

5. How does the order of a reaction affect the rate constant?

Ans. The order of a reaction influences the rate constant as it is related to the specific rate constant for that reaction order. The rate constant is different for reactions of different orders.

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Sep 20, 2025 Last updated

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