For the reaction $\mathbf{2}\mathbf{}\mathit{A}\mathbf{\left(}\mathit{g}\mathbf{\right)}\mathbf{+}\mathbf{B}\mathbf{\left(}\mathit{a}\mathit{q}\mathbf{\right)}\mathbf{+}\mathbf{3}\mathit{C}\mathbf{\left(}\mathit{l}\mathbf{\right)}\mathbf{\rightleftharpoons }\mathbf{D}\mathbf{\left(}\mathbf{s}\mathbf{\right)}\mathbf{+}\mathbf{3}\mathit{E}\mathbf{\left(}\mathit{g}\mathbf{\right)}$, the concentrations at equilibrium are found to be

A:$\mathbf{2}\mathbf{.}\mathbf{8}\mathbf{\times }{\mathbf{10}}^{\mathbf{3}}\mathbf{}\mathbf{Pa}$

B: $\mathbf{1}\mathbf{.}\mathbf{2}\mathbf{\times }{\mathbf{10}}^{\mathbf{-}\mathbf{2}}\mathbf{}\mathit{M}$

C:$\mathbf{12}\mathbf{.}\mathbf{8}\mathit{M}$

D: $\mathbf{16}\mathbf{.}\mathbf{5}\mathit{M}$

E:$\mathbf{3}\mathbf{.}\mathbf{6}\mathbf{\times }{\mathbf{10}}^{\mathbf{4}}\mathbf{}\mathbf{Torr}$

Find the numerical value of the equilibrium constant that would appear in a conventional table of equilibrium constants.

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