Question

One mole of PCl5 is heated in one litre closed container. If 0.5mole of Cl is found at equilibrium, calculate the value of equilibrium constant

Answer 1

Answer:

The question is one mole of pcl5 is heated in one litre closed container. If 0.6 mole of chlorine is found at equilibrium, calculate the value of equilibrium constant.

So here you need to get the equilibrium concentrations of PCl5, PCl, and Cl2.

Equation for dissociation; PCl5 ----------> PCl3 + Cl2

equilibrium concentrations are; PCl = 0.4 M, PCl3 =0.6 M, Cl2= 0.6M

So equillibrium constant is = 0.6 x 0.6/0.4

= 0.9

hope u get ans.......

τнänκ чöü♥█▬█ █ ▀█▀Rᴇᴅɪsᴄᴏᴠᴇʀɪɴɢ Lᴏᴠᴇ

Answer 2

Given:

One mole of PCl5 is heated in one litre closed container. 0.5mole of Cl is found at equilibrium

To find:

If 0.5mole of Cl is found at equilibrium, calculate the value of equilibrium constant

Solution:

From given, we have,

One mole of PCl5 is heated in one litre closed container. 0.5mole of Cl is found at the equilibrium

⇒ α = 0.5 mole

The equilibrium constant is given by,

Kc = [PCl3] [Cl] / [PCl5]

Kc = [α] [α] / [1 - α]

Kc = (0.5 × 0.5) / (1 - 0.5)

Kc = 0.5² / 0.5

Kc = 0.5

The value of the equilibrium constant is 0.5.