Le Chatelier and Equilibrium

What two factors indicate that a reaction is at equilibrium?

• Concentrations are equal; the forward and reverse reactions are equal

• The concentrations are constant; the forward and reverse reactions are equal

• The concentrations are equal; the forward reaction is faster than the reverse reaction

• The concentrations are constant; the forward reaction is faster than the reverse reaction

Tags

NGSS.HS-PS1-6

Which of the following statements is not correct regarding equilibrium?

• Equilibrium is achieved when the product and reactant concentrations are the same

• Equilibrium is achieved when the concentrations of all reactants is constant

• Equilibrium is achieved when the forward and reverse reactions are equal

• Equilibrium is achieved when the ratio of products to reactants is constant

A double sided arrow (↔), indicates that a reaction is:

• Reversible

• Irreversible

• Not reactive

Tags

NGSS.HS-PS1-6

Which of the following is true if the value of the equilibrium constant, K, is greater than 1

• Products are favored over reactants

• Reactants are favored over products

• Reactants and products are equally favored

Tags

NGSS.HS-PS1-6

Which of the following is true if the value of the equilibrium constant, K, is less than 1

• Products are favored over reactants

• Reactants are favored over products

• Reactants and products are equally favored

Which of the following factors has no effect on the position of the chemical equilibrium for a reaction?

• Pressure

• Temperature

• Catalyst

• Concentration

Tags

NGSS.HS-PS1-6

the idea that states when a change is introduced to a system in equilibrium, the system shifts in the direction that relieves the change

• mole

• molar mass

• equilibrium

• Le Chatelier's principle

a chemical reaction in which the conversion of reactants into products and the conversion of products into reactants occurs at the same time

• Avogadro's number

• mole

• reversible reaction

• Le Chatelier's Principle

Tags

NGSS.HS-PS1-6

a state in which the forward and reverse paths of a chemical reaction take place at the same rate

• equilibrium

• chemical energy

• catalyst

• concentration

Tags

NGSS.HS-PS1-6

Complete these sentences on Le Chatelier's Principle...

CONCENTRATION - If you change the concentration of either the reactants or products the reaction will no l_____ be at e__________

Increase the concentration of the reactants system it tries to d_______ it by making p______(s)

Decrease the concentration of products the system tries to i_______ it again by r_______ the amount of r_______(s).

Tags

NGSS.HS-PS1-5