Time required to decompose $SO_2Cl_2$ to half of its initial amount is $40 \ minutes$. If the decomposition is a first order reaction,what will be the rate constant of the reaction?
- A$2.88 \times 10^{-4} \ s^{-1}$
- B$2.88 \times 10^{-2} \ s^{-1}$
- C$1.73 \times 10^{-2} \ s^{-1}$
- D$1.73 \times 10^{-4} \ s^{-1}$
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