Medium
The rate for the reaction $A + B \rightarrow \text{product}$ is $1.8 \times 10^{-2} \ mol \ dm^{-3} \ s^{-1}$. Calculate the rate constant if the reaction is second order in $A$ and first order in $B$,given $[A] = 0.2 \ M$ and $[B] = 0.1 \ M$.
- A$9.0 \ mol^{-2} \ dm^6 \ s^{-1}$
- B$18.0 \ mol^{-2} \ dm^6 \ s^{-1}$
- C$4.5 \ mol^{-2} \ dm^6 \ s^{-1}$
- D$16.0 \ mol^{-2} \ dm^6 \ s^{-1}$
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