Write the equilibrium expression, $K_{b}$, for the reaction represented above.
\(\boxed{K_b = 0}\)
Step 1 :\(K_b = \frac{[B]^2}{[A]^2}\)
Step 2 :\(K_b = \frac{(b + 5)^2}{(2b - 3)^2}\)
Step 3 :\(K_b = \frac{(-5 + 5)^2}{(2(-5) - 3)^2}\)
Step 4 :\(K_b = \frac{0^2}{(-13)^2}\)
Step 5 :\(K_b = \frac{0}{169}\)
Step 6 :\(\boxed{K_b = 0}\)