Question:
For the reaction H₂(g) + Br₂(g) → 2HBr(g), the experimental data suggest, rate = k[H₂][Br₂]¹/2.
The molecularity and order of the reaction are respectively
For the reaction H₂(g) + Br₂(g) → 2HBr(g), the experimental data suggest, rate = k[H₂][Br₂]¹/2.
The molecularity and order of the reaction are respectively
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Order is obtained from the rate law, while molecularity depends on the reaction mechanism.
Updated On: Mar 19, 2026
- 2,(3)/(2)
- (3)/(2),2
- 1,1
- 1,(1)/(2)
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The Correct Option is A
Solution and Explanation
Step 1: Order of reaction:
Order = 1 + (1)/(2) = (3)/(2)
Step 2: Overall reaction involves two reacting molecules:
Molecularity = 2
Step 3: Hence, molecularity =2 and order =3/2.
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