For the equilibrium : LiCl 3 NH _3(s) LiCl NH _3(s) + 2 NH _3, K_P = 9 atm ^2 at 40°C

CHEMISTRY · Subjective · A Level · Chemistry · Gaseous equilibria (Kp) · Gaseous equilibria (Kp)

Problem

For the equilibrium :

\text{LiCl} \cdot 3\text{NH}_3(s) \rightleftharpoons \text{LiCl} \cdot \text{NH}_3(s) + 2\text{NH}_3, K_P = 9 \text{ atm}^2

at 40°C. A 5 litre vessel contains 0.1 mole of

\text{LiCl} \cdot \text{NH}_3

. How many mole of

\text{NH}_3

should be added to the flask at this temperature to derive the backward reaction for completion?