Question

What is the pressure of BrCl in an equilibrium mixture of Cl2, Br2, and BrCl if the pressure of Cl2 in the mixture is 0.115 atm and the pressure of Br2 in the mixture is 0.450 atm?

Cl2 (g) + Br2 (g) ⇌ 2BrCl(g)

KP = 4.7 × 10−2

Answer 1

Let us consider a equilibrium reaction

then equilibrium constant pressure

Here the equlibrium reaction

and

N ow using the above rule for Kp, we get

Henece the pressure of BrCl is 0.048 atm