Equilibrium Constants

Front

What does a large equilibrium constant (K) indicate about the reaction at equilibrium?

Back

A large equilibrium constant (K) indicates that there are more products than reactants when the reaction reaches equilibrium.

Front

What do [A] and [B] represent in the context of equilibrium constants?

Back

[A] and [B] represent the concentrations of reactants in the equilibrium constant expression.

Front

Write the equilibrium constant expression for the reaction N2O4(g) ↔ 2 NO2(g).

Back

Kc = [NO2]² / [N2O4]

Front

What is the equilibrium constant expression for CO2(g) + H2(g) ↔ CO(g) + H2O(l)?

Back

Kc = [CO] / [CO2][H2]

Front

If the equilibrium constant (K) is much greater than one (K >> 1), what does this imply about the position of equilibrium?

Back

It implies that equilibrium lies to the right, favoring the products.

Front

Define equilibrium in the context of chemical reactions.

Back

Equilibrium is the state in which the concentrations of reactants and products remain constant over time, as the forward and reverse reactions occur at equal rates.

Front

What is the significance of the equilibrium constant (K) in a chemical reaction?

Back

The equilibrium constant (K) quantifies the ratio of the concentrations of products to reactants at equilibrium, providing insight into the extent of the reaction.

Front

How does temperature affect the equilibrium constant (K)?

Back

The equilibrium constant (K) is temperature-dependent; changes in temperature can shift the position of equilibrium and alter the value of K.

Front

What is the difference between Kc and Kp?

Back

Kc is the equilibrium constant expressed in terms of concentrations, while Kp is expressed in terms of partial pressures.

Front

What does it mean if K < 1 for a reaction?

Back

If K < 1, it indicates that at equilibrium, there are more reactants than products.