A reaction with an equilibrium constant Kc = 1.5 x 1021 would consist of which of the following at equilibrium:
A. some reactants and products with reactants slightly favored
B. essentially all products
C. essentially all reactants
D. approximately equal reactants and products
E. some reactants and products with products slightly favored
Answered below.
To determine the composition at equilibrium based on the equilibrium constant (Kc), we need to consider the magnitude of the Kc value.
In this case, if the equilibrium constant (Kc) is very large (1.5 x 10^21), it means that the products are greatly favored compared to the reactants. Therefore, the correct answer would be:
B. essentially all products
To determine the answer, we need to consider the value of the equilibrium constant (Kc). The Kc value gives us information about the relative concentrations of reactants and products at equilibrium.
In this case, the equilibrium constant is very large, with a value of 1.5 x 10^21. Such a large value suggests that the products are highly favored at equilibrium.
To explain how to get this answer, we analyze the magnitude of the equilibrium constant.
If the value of Kc is much greater than 1, it indicates that at equilibrium, there are significantly more products than reactants. In other words, the forward reaction is strongly favored, resulting in a high concentration of products compared to reactants.
Therefore, the correct answer in this case would be option B. Essentially all products would be present at equilibrium.