The equilibrium constant (Kp) for the interconversion of PCs and PC13 is 0.0121: A vessel is charged with PC15 giving an initial pressure of 0.123 atm. At equilibrium, the partial pressure of PCl3 is...

The equilibrium constant (Kp) for the interconversion of PCs and PC13 is 0.0121: A vessel is charged with PC15 giving an initial pressure of 0.123 atm. At equilibrium, the partial pressure of PCl3 is ______ atm. A) 0.0782 B) 0.0455 C) 0.0908 0.0330 E) 0.123