Equilibrium Constant

What symbol represents concentration in equilibrium constant expressions?

[ ] is the symbol for 'concentration'.

What does Kc include in its calculations?

Kc only includes terms for gases and aqueous solutions.

In the equilibrium expression K = [R]^r [S]^s / [P]^p [Q]^q, what do R and S represent?

R and S represent the products of the reaction.

What is the effect of a solid or liquid species on the equilibrium constant?

The concentration of solid and liquid species does not change during the reaction.

In the reaction N2(g) + 3H2(g) ⇌ 2NH3(g), what is the equilibrium constant (K) if [NH3] = 9.60 at 573 K?

At 573 K, K = 9.60.

What does a large Kc value indicate about the equilibrium composition?

A large Kc value indicates that equilibrium favours the products.

What does a small Kc value imply about the equilibrium position?

A small Kc value implies that equilibrium favours the reactants.

What are the factors that can change the K value?

K value changes due to temperature, changes in concentration, pressure, and volume.

What happens to the equilibrium constant if a reaction is product-favored?

The equilibrium constant will be greater than 1 (Kc >> 1).

What happens to Kc if the reaction favors the reactants?

The equilibrium constant will be less than 1 (Kc << 1).