For the reaction, H_ 2(g) + Br_ 2(g) 2HBr_ (g) , r = K[ H_2 ][ Br_2 ]^ 1 2 What is the molecularity and order of reaction respectively ?

MHT CET 2024 Chemistry question

For the reaction, , What is the molecularity and order of reaction respectively ?

(A)Monomolecular and
(B)Monomolecular and 1
(C)Monomolecular and
(D)Bimolecular and Correct

Answer: (D)

Solution

Order is the sum of the exponents in the experimentally determined rate law: . Molecularity, as used at this level, is the number of reactant molecules in the balanced equation: one and one molecule take part, so the reaction

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Question ID VK-099698