PC13(0) + Cl2(g) 2PCi5C) Kc6.5 At a certain point in time, a 1.00 L rigid reaction vessel contains 1.5 mol of PC13(a). 1.0 mol of Cl2C), and 2.5 mol of PCI5C). Which of the following describes how the measured pressure in the
reaction vessel will change and why it will change that way as the reaction system approaches equilibrium at constant temperature?
The pressure will increase because Q< KC.
B
The pressure will increase because > K.
The pressure will decrease because Q< KC.
The pressure will decrease because > Kc.
D