A reaction is at equilibrium at a given temperature and constant pressure when __________

Question

Quizplus · Accepted Answer

At equilibrium, the forward and reverse reactions occur at equal rates, so the net change in the concentrations of reactants and products is zero. This can be expressed mathematically using the equilibrium constant (K), which relates the concentrations of reactants and products at equilibrium. The equation given in choice C correctly represents the equilibrium condition, with the forward reaction written as F1F1F1S1 → F1F1F10G and the reverse reaction written as F1F1F10G → F1F1F1S1. The subscript "rxn" indicates that these are the reactants and products of the overall reaction. The notation "_{" and "}" represents the standard states of the reactants and products, respectively. The equilibrium constant is defined as K = [F1F1F10G] / [F1F1F1S1], and at equilibrium, K = 1.

A Reaction Is at Equilibrium at a Given Temperature and Constant