Consider the following equilibrium reaction,

\({\rm PCL{5(gas)}}\leftrightarrow{\rm PCL{3(gas)}}+{\rm Cl{2(gas)}}\). If a 1-liter flask contains 0.02 moles of \({\rm PCL{3}}\) and 0.02 moles of \({\rm Cl{2}}\) at equilibrium, how many moles of \({\rm PCL{5}}\) are in the flask. Assume the equilibrium constant is \(5\times 10^{-2}\).
\(8\times 10^{-3}\) (ACCEPT: 0.008)