For the equilibrium
3H2(g)+N2(g)↔2NH3(g)
(Kc=0.50 at the temperature studied), the system is at equilibrium when one of the single concentration changes listed below is made; no other variables are altered.
Scenario 1: [H2] is doubled.
Scenario 2: [N2] is doubled.
Scenario 3: [NH3] is halved.
Rank the scenarios from strongest to weakest in terms of the subsequent shift toward formation of NH3.