If a reaction has an equilibrium constant just greater than 1 what type of reaction is it? a. irreversible b. spontaneous c. reversible, favoring products d. reversible, favoring reactants

Explanation:

In an equilibrium reaction two reactions are happening simultaneaously: the direct or forward reaction, and the reverse or backward reaction.

Then, equilibrium reaction are reversible.

This is the general scheme of an equlibrium reaction:

        The equilibrium constant, Ke, is given by the expression:

From that, you can conclude:

1) Since the products are on the numerator of the fraction, Ke > 1 means that, in the equilibrium, there are more products than reactants, i.e. products are favored.

2) Since, the reactants are on the denominator of the fraction, Ke < 1 means that, in the equilibrium, there are more reactants than products, i.e. reactants are favored.

Also, when Ke is very large, the reaction may be considered that is completed and non-equilibrium is established, i.e. the reaction is irreversible.

So, as it is stated that a reaction has an equilibrium constant just greater than 1, we are facing the case explained on the number (2), and you can conclude that this is a reversible reaction, favoring the products (option c.).