Which of the following is TRUE?

1. When the value of Q is large, the equilibrium lies on the product side of the equilibrium reaction.

2. A small value of K means that the equilibrium concentrations of the reactants are small compared to the equilibrium concentration of the products.

3. When the value of K is large, the equilibrium lies on the reactant side of the equilibrium reaction.

4. A large value of K means that the equilibrium concentrations of products are large compared to the equilibrium concentrations of the reactants

5. When the value of K is small, the equilibrium lies on the product side of the equilibrium reaction.

For a general equilibrium

aA + bB ⇔ cC + dD,

the equilibrium constant is K = [C]^c [D]^d / [A]^a[B]^b.

Our reasoning here should be based on the fact that Q has the same expression as K, but is used when the system is not at equilibrium, and the system will react to make Q = K to attain it (Le Chatelier's principle).

So with this in mind, lets answer this question.

1. False: Q can large or small but is not the value of the equilibrium constant, it will predict the side towards the equilibrium will shift to attain it.

2. False: Given the expression for the equilibrium constant, we know if K is small the concentrations of the reactants will be large compared to the equilibrium concentrations of the products.

3. False: when the value of K is large, the equilibrium concentrations of the products will be large and it will lie on the product side.

4. True: From our previous reasongs this is the true one.

5. False: If K is small, the equilibrium lies on the reactants side.