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Chemistry Question on Chemical Kinetics

The overall order of a reaction which has the rate expression, rate = k[A]1/2 [B]1/2k[A]^{1/2}\, [B]^{1/2} is

A

1st order

B

zero order

C

half order

D

second order.

Answer

1st order

Explanation

Solution

Rate = k[A]1/2 [B]1/2k[A]^{1/2}\, [B]^{1/2}
Overall order of reaction = 12+12=1\frac{1}{2} + \frac{1}{2} = 1