Final answer:
Keq = 1 indicates that at equilibrium, the concentrations of the reactants and products are equal, with neither being favored. A Keq value significantly greater than 1 means products are favored, while a value less than 1 favors reactants. Coefficients in the chemical equation affect the value of Keq as they become exponents in its expression.
Step-by-step explanation:
When Keq = 1, it signifies that the concentrations of the reactants and products are in a state of dynamic equilibrium where neither is favored over the other. According to the principles of chemical equilibrium, if the equilibrium constant (Keq) is a large number, such as 100 or 1×1015, it means the products are favored significantly over the reactants at equilibrium.
In contrast, a Keq value less than 1 suggests that the reactants are favored. The value of K is influenced by how coefficients in a balanced chemical equation translate to exponents in the Keq expression, and the equilibrium constant changes according to the power of the coefficient when the balanced equation is altered.