Factors Affecting Equilibrium

Identify the labels (a) and (b) on the graph.

• a is concentration of reactants and b is the concentration of product

• a is concentration of product and b is the concentration of reactant

• a is the volume of reactants and b is the volume of product

• a the mass of reactants and b is the mass of product

Tags

NGSS.HS-PS1-5

The rate of forward reaction is _______, because of the high concentration of reactants

• lowest

• highest

• moderate

• minimal

Tags

NGSS.HS-PS1-5

This factor doesn’t affect chemical equilibrium in a reaction.

• Change in catalyst

• Change in pressure

• Change in concentration

• Change in temperature

Tags

NGSS.HS-PS1-6

Which of the following will shift a chemical equilibrium to the right?

• removing reactants

• adding products

• removing products

• adding a catalyst

Tags

NGSS.HS-PS1-6

What is the effect of changing the volume or pressure of a system if the nuber of moles of gas is the same for reactants and products?

• shift right

• shift left

• stays balanced

What is the effect of an increase in volume on a reaction?

• shifts right

• shifts left

• shifts to the side with more moles

• shifts to the side with fewer moles

What is the effect of an increase in pressure on a reaction?

• shifts right

• shifts left

• shifts to the side with more moles

• shifts to the side with fewer moles

Which of these choices shifts the reaction to the left, toward the reactants?

• adding reactants / adding products

• adding reactants / removing products

• removing reactants / removing products

• removing reactants / adding products

Tags

NGSS.HS-PS1-6

Which of the following factors will not affect the position of equilibrium in a chemical reaction?

• Change in temperature

• Change in pressure

• Change in concentration

• Change in catalyst

Tags

NGSS.HS-PS1-6

According to Le Chatelier's principle, what happens to the equilibrium position when the concentration of reactants is increased?

• Shifts to the right

• Shifts to the left

• Remains unchanged

• Shifts to the side with fewer moles