A reaction with an equilibrium constant Kc = 1.5 x 10-25 would consist of which of the following at equilibrium:
A. some reactants and products with products slightly favored
B. essentially all products
C. some reactants and products with reactants slightly favored
D. approximately equal reactants and products
E. essentially all reactants
1.5E-25 is a small number, so it would be E. essentially all reactants.
Well, that's quite a tiny equilibrium constant, isn't it? It's so small, you could call it "Kc - The Miniature Edition!"
With such a small value, it means that the reactants are heavily favored. So, the answer is C. We have some reactants and products, but the reactants have a slight advantage in the equilibrium game. They must have been practicing extra hard in the gym!
To determine the composition at equilibrium for a reaction with a given equilibrium constant, we need to analyze the magnitude of the equilibrium constant.
In this case, the equilibrium constant Kc is 1.5 x 10-25. This value is very small, which indicates that the reaction heavily favors the reactants.
So, the correct answer would be:
C. some reactants and products with reactants slightly favored.