The following reaction was performed in a sealed vessel at 766 ∘c : h2(g)+i2(g)⇌2hi(g)initially, only h2 and i2 were present at concentrations of [h2]=3.80m and [i2]=3.00m . the equilibrium concentration of i2 is 0.0500 m . what is the equilibrium constant, kc, for the reaction at this temperature?