For the Reaction PCl₅ (G)⇌ PCl₃ (G)+ Cl₂ (G),K_c =

Multiple Choice

For the reaction PCl₅ (g) ⇌ PCl₃ (g) + Cl₂ (g) ,K_c = 0.0454 at 261 °C.If a vessel is filled with theses gases such that the initial concentrations are [PCl₅] = 0.2 M,[PCl₃] = 0.2 M,and [Cl₂] = 2.25 M,which of the following statements is TRUE?

A) the reaction is at equilibrium
B) the forward reaction is spontaneous
C) the reverse reaction is spontaneous
D) the forward reaction is exothermic
E) the reverse reaction is exothermic