The equilibrium constant, $K_p,$ for the following reaction is $1\mathrm{.}07$ at $521K$ :

$SbC{l}_5(g)SbC{l}_3(g)+C{l}_2(g)$

Calculate the equilibrium partial pressures of all species when $SbC{l}_5(g)$ is introduced into an evacuated flask at a pressure of $1\mathrm{.}71$atm at $521K.$