Consider the Following Equilibrium $\rightleftharpoons$ PCl₅(g) ?H = -92 KJ
the Concentration of PCl₃ at =

Consider the following equilibrium. PCl₃(g) + Cl₂(g) $\rightleftharpoons$ PCl₅(g) ?H = -92 kJ
The concentration of PCl₃ at equilibrium can be increased by:

A) decreasing the temperature.
B) adding Cl₂ to the system.
C) adding PCl₅ to the system.
D) increasing the pressure.
E) adding a catalyst.