Question:medium

What is the overall order of the reaction? Rate = k[A]½ [B]3/2

Updated On: Jan 16, 2026
  • 2
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  • 1
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The Correct Option is A

Solution and Explanation

The overall order of a chemical reaction is calculated by summing the exponents of the concentration terms present in the rate law expression. For the given rate law:

Rate = k[A]½ [B]3/2

The term [A]½ signifies a reaction order of ½ with respect to reactant A, and [B]3/2 indicates a reaction order of 3/2 with respect to reactant B.

The overall reaction order is determined by the sum of these individual orders:

1. Order with respect to A: ½

2. Order with respect to B: 3/2

3. Overall order = ½ + 3/2 = 2

Consequently, the overall order of this reaction is 2.

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