Chemical Equilibrium

Front

What is 'dynamic equilibrium' in a chemical reaction?

Back

A state where the forward and reverse reactions occur at the same rate, resulting in constant concentrations of reactants and products.

Front

What does a double arrow (⇌) indicate in a chemical reaction?

Back

The reaction is reversible.

Front

What does the equilibrium constant (K_{eq}) express in a chemical reaction?

Back

The ratio of the concentration of products to reactants at equilibrium.

Front

If the concentration of SO2 is increased in the reaction SO2 + O2 ⇌ SO3, which way will the equilibrium shift?

Back

The equilibrium will shift to the right.

Front

In the reaction N2(g) + 3H2(g) ⇌ 2NH3(g), what happens when the concentration of NH3 is increased?

Back

The equilibrium shifts to the left.

Front

What is Le Chatelier's Principle?

Back

If a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts to counteract the change.

Front

What effect does increasing temperature have on an exothermic reaction at equilibrium?

Back

The equilibrium shifts to the left, favoring the reactants.

Front

What is the effect of decreasing pressure on a gaseous equilibrium reaction?

Back

The equilibrium shifts towards the side with more moles of gas.

Front

Define 'equilibrium position' in a chemical reaction.

Back

The specific concentrations of reactants and products at equilibrium.

Front

What is the significance of the equilibrium constant (K) being greater than 1?

Back

It indicates that at equilibrium, products are favored over reactants.