A 100 L reaction container is charged with 0.704 mol of NOBr, which crumble at a certain temperature say between 100 and150 ºC according to the subsequent reaction:
NOBr(g) ↔ NO(g) + 0.5Br2(g)
At equilibrium the bromine concentration is 2.08x10-3 M. Compute Kc (in M0.5)