Question

The equilibrium constant for Br2 + Br <-> Br3 at 25 degrees is 18. Calculate the equilibrium constant Br3 <-> Br2 + Br

Answer 1

eqn 1 Br2 + Br <-> Br3
eqn 2 Br3 <-> Br2 + Br
Equation 2 is the reverse of equation 1.
If k1 is 18, then k2 is 1/18.