For the reaction $A+B \rightarrow C+D$, calculate the value of k for this reaction based on the following data collected in three different experiments:

Question

$\begin{array} {cccc} \text{Experiment} & [A]\; \text{in M} & [B]\; \text{in M} & \text{Initial Rate in Ms}^{-1}\\ 1 & 0.5 & 1.5 & 4.20 \times 10^{-3}\\ 2 & 1.5 & 1.5 & 1.26 \times 10^{-2}\\ 3 & 3.0 & 3.0 & 5.04\times 10^{-2}\\ \end{array}$

$\begin{array}{1 1} 5.6 \times 10^{-3}M^{-1} s^{-1} \\ 5.6 \times 10^{-2}M^{-2} s^{-1} \\ 5.6 \times 10^{-3}M^{-2} s^{-1} \\ 5.6 \times 10^{-2}M^{-1} s^{-1} \end{array}$