Question

The equilibrium constant (K) for the reaction Y!X can be expressed with respect to the concentrations of the reactant and product molecules. Which of the expressions below shows the correct relationship between K, [Y], and [X]?

(A) K = [Y]/[X]
(B) K = [Y] * [X]
(C) K = [X]/[Y]
(D) K = [X] - [Y]

Answer 1

The correct expression that shows the relationship between the equilibrium constant (K), [Y], and [X] for the reaction Y!X is (A) K = [Y]/[X].

Step-by-step explanation:

The correct expression that shows the relationship between the equilibrium constant (K), [Y], and [X] for the reaction Y!X is: (A) K = [Y]/[X]

The equilibrium constant is the ratio of the concentrations of the products to the concentrations of the reactants, with each concentration raised to the power of its coefficient in the balanced chemical equation. In this case, the concentration of Y is divided by the concentration of X. This expression allows us to calculate the equilibrium constant if the concentrations of the reactants and products are known.