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The rate law for the reaction A +...

The rate law for the reaction
`A +2B to` products is : rate `= K [A] [B] ^(2)` Rate of the reaction at `30 ^(@)` C is found to be 0.125 M/s , when `[A]=2.0` M and [B]=0.4 M . The rate constant k at this temperature is ________ `M^(-2) S^(-1)`.

A

`3.9`

B

`0.39`

C

`0.15`

D

`1.5`

Text Solution

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The correct Answer is:
B
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