CBSE | RELATIONSHIP BETWEEN EQUILIBRIUM CONSTANT K, REACTION QUOTIENT Q AND GIBBS ENERGY G

Relation Between Reaction Quotient And Gibbs Free Energy

For the water gas reaction C(s) + H_(2)O(g) hArr CO(g) + H_(2)(g) At 1000K , the standard Gibbs free energy change of the reaction is -8.314KJ//mol . Therefore, at 1000K the equilibrium constant of the above water gas reaction is

Mass action rato or reaction quotient Q for a reaction can be calculate using the law of masss action A(g)+B(g) hArr C(g)+D(g) Q=([C][D])/([A][B]) The value of Q decides whether the reaction is at equilibrium or not. At equilibrium, Q=K For an equilibrium process, Q ne K when Q gt K , reaction will favour backward direction and when Q lt K , it will favour direction. Answer the following questions: For the reaction: 2A+B hArr 3C at 298 K, K_(c)=40 A 4L vessel contains 2, 1, and 4 mol of A, B and c, respectively. The reaction at the same temperature