Question

Bromine monochloride, BrCl decomposes into bromine and chlorine and reaches the equilibrium: 

for which K_c= 32 at 500 K. 

If initially pure BrCl is present at a concentration of 3.3 × 10^-3 molL^-1 , what is its molar concentration in the mixture at equilibrium? 

Answer 1

Let the amount of bromine and chlorine formed at equilibrium be x. The given reaction is: 

Now, we can write, 

Therefore, at equilibrium,