A student ran the following reaction in the laboratory at $548$ K:

COCl$2($g$)$ CO$($g$)+$ Cl$2($g$)$

When she introduced $0\mathrm{.}615$ moles of COCl$2($g$)$ into a $1\mathrm{.}00$ Liter container, she found the equilibrium concentration of Cl$2($g$)$ to be $3\mathrm{.}24$E$-2$ M$.$

Calculate the equilibrium constant, Kc$,$ she obtained for this reaction.

Kc $=$