Chemical Equilibrium

Front

What state of matter is affected by changes in pressure?

Back

Gaseous

Front

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

Back

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

Front

What happens to the equilibrium when the volume of the container is decreased in the reaction 2SO2(g) + O2(g) ⇌ 2SO3(g)?

Back

Shift equilibrium right

Front

Calculate the concentration of HCl when K_eq = 2.3x10^-5, [H2] = 0.0056 mol, [Cl2] = 0.0048 mol.

Back

2.5 x 10^-5 M

Front

What is a complete reaction?

Back

All the reactants convert into products.

Front

Define chemical equilibrium.

Back

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

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 does the equilibrium constant (K) indicate?

Back

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

Front

What is the effect of temperature on equilibrium?

Back

Changing the temperature can shift the position of equilibrium depending on whether the reaction is exothermic or endothermic.

Front

What is the difference between Kc and Kp?

Back

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