Unit 9 Review: Rates & Equilibrium

Front

What happens to the rate of reaction when the temperature of reactants increases?

Back

The rate of reaction increases due to an increase in collision frequency between particles.

Front

What is the equilibrium expression for the reaction NH2COONH4(s) ↔ 2 NH3(g) + CO2(g)?

Back

K = [NH3]^2[CO2]

Front

What is Le Châtelier’s principle?

Back

If a stress is applied to a system at equilibrium, the system shifts in the direction that relieves the stress.

Front

What factors affect the rate of reaction?

Back

Temperature, Pressure, Concentration, and Surface Area.

Front

What is the effect of increasing the concentration of SO2 in the reaction SO2 + O2 ⇌ SO3?

Back

The equilibrium will shift to the right.

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 the common ion effect?

Back

The decrease in solubility of a salt when a common ion is added to the solution.

Front

What is the solubility product constant (Ksp)?

Back

The equilibrium constant for a saturated solution of a sparingly soluble ionic compound.

Front

How does surface area affect the rate of reaction?

Back

Increasing surface area increases the rate of reaction by allowing more collisions between reactant particles.

Front

What is a heterogeneous equilibrium?

Back

An equilibrium involving reactants and products in different phases.