The rate law is : rate = k[A]2[B]...(1)
The rate of the reaction when the concentration of A is Trippled and B is kept constant:
r1=k[3A]2[B]
r1=9k[A]2[B].....(2)
From equation first and second:
r1=9r
Thus, the rate is increased by a factor of 9.
For a certain reaction, the rate =k[A]2[B], when the initial concentration of A is tripled keeping concentration of B constant, the initial rate would
Held on 30 Apr 2023 · Verified 9 Jul 2026.
increase by a factor of three.
decrease by a factor of nine.
increase by a factor of six.
increase by a factor of nine.
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