A vessel originally contained 0.240 mol iodine monobromide (IBr), 0.0016 mol I2, and 0.0014 mol Br2.
I2(g) + Br2(g) 2 IBr(g)
The equilibrium constant Kc for this reaction is 1.2 102 at 150°C. What is the direction (forward or reverse) needed to attain equilibrium at 150°C?