Chemical Equilibrium

Front

What state of matter is affected by changes in pressure?

Back

Gaseous

Front

What does the symbol ⇌ indicate about a reaction?

Back

Reversible

Front

What is the K_eq expression for the reaction 2 NO_(g) + O_2(g) ⇌ 2 NO_2(g)?

Back

K_eq = [NO₂]² / [NO]²[O₂]

Front

At what time is equilibrium established in a reaction?

Back

5 seconds

Front

What is a forward reaction?

Back

The reaction that forms products from reactants.

Front

What is chemical equilibrium?

Back

A state in a reversible reaction where the rates of the forward and reverse reactions are equal.

Front

What does Le Chatelier's principle state?

Back

If a system at equilibrium is subjected to a change in concentration, temperature, or pressure, the system will adjust to counteract that change.

Front

What is the effect of increasing temperature on an exothermic reaction at equilibrium?

Back

It shifts the equilibrium to the left, favoring the reactants.

Front

What is the equilibrium constant (K_eq)?

Back

A numerical value that expresses the ratio of the concentrations of products to reactants at equilibrium.

Front

What happens to the equilibrium position if a reactant is added?

Back

The equilibrium shifts to the right, favoring the formation of products.