For the equilibrium H₂ (g) + S(s) ⇄ H₂ S(g), K_c =6.1*10⁵ at 298 K.If the concentrations of H₂ and H₂S are equal, which statement below is true?

Question

Quizplus · Accepted Answer

DFor a reaction at equilibrium, the reaction quotient (Q) equals the equilibrium constant (K). Given that the concentrations of reactants and products are equal, the reaction quotient Q, which is the ratio of the concentrations of products to reactants for this reaction, equals 1. This does not necessarily mean that K equals 1, only that under these conditions, the system is at equilibrium because Q equals K, indicating that the forward and reverse reactions are proceeding at the same rate.

For the Equilibrium H2 (G) + S(s) ⇄ H2 S(g)

For the Equilibrium H₂ (G) + S(s) ⇄ H₂ S(g)