The equilibrium constant is given for one of the reactions below.Determine the value of the missing equilibrium constant. N₂O₄(g) ⇌ 2 NO₂(g) K_c = 1.46
3 N₂O₄(g) ⇌ 6 NO₂(g) K_c = ?

Question

The equilibrium constant is given for one of the reactions below.Determine the value of the missing equilibrium constant. N₂O₄(g)⇌ 2 NO₂(g)K_c = 1.46 3 N₂O₄(g)⇌ 6 NO₂(g)K_c = ?

Quizplus · Accepted Answer

The equilibrium constant is proportional to the product of the concentrations of the products raised to their stoichiometric coefficients, divided by the product of the concentrations of the reactants raised to their stoichiometric coefficients. In this case, multiplying the given equilibrium constant by 3 (to account for the fact that the second reaction has three times as many moles of O2) gives a value of 4.38. Therefore, the answer is C.

The Equilibrium Constant Is Given for One of the Reactions