Medium
For the reaction,$PCl_5 \longrightarrow PCl_3 + Cl_2$,the rate and rate constant are $1.02 \times 10^{-4} \ mol \ L^{-1} \ s^{-1}$ and $3.4 \times 10^{-5} \ s^{-1}$ respectively at a given instant. The molar concentration of $PCl_5$ at that instant is
- A$8.0 \ mol \ L^{-1}$
- B$3.0 \ mol \ L^{-1}$
- C$0.2 \ mol \ L^{-1}$
- D$2.0 \ mol \ L^{-1}$
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