750 G of PCl₅(g) Is Introduced into an Evacuated 3

75.0 g of PCl₅(g) is introduced into an evacuated 3.00 L vessel and allowed to reach equilibrium at 250ºC.PCl₅(g) ⇌ PCl₃(g) + Cl₂(g) If K_p = 1.80 for this reaction, what is the total pressure inside the vessel at equilibrium

A) 2.88 atm
B) 2.27 atm
C) 4.54 atm
D) 7.42 atm
E) 9.69 atm