# For a reaction, $2S{O}_{2\left(g\right)}+{O}_{2\left(g\right)}⇔2S{O}_{3\left(g\right)}$ , 1.5 moles of $S{O}_{2}$ and 1 mole of ${O}_{2}$ are taken in a 2 L vessel. At equilibrium the concentration of $S{O}_{3}$ was found to be 0.35 mol ${L}^{-1}$. The for the reaction would be  5.1 L $mo{l}^{-1}$  0.6 L $mo{l}^{-1}$  2.95 L $mo{l}^{-1}$ 1.4 L $mo{l}^{-1}$ ​

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