Le Chatelier's Principle states that if a chemical system at equilibrium is stressed,

the system will adjust to reduce the stress

the system will adjust to increase the stress

Given the reaction at equilibrium: 2SO 2 (g) +O 2 (g) <--> 2SO 3 (g) + HEAT Which change will shift the equilibrium to the right?

decreasing the amount of SO 2 (g)

decreasing the amount of O 2 (g)

How do catalysts increase the rate of reaction?

The activation energy is lowered

The frequency of collisions is increased

The energy of collisions is increased

Both the frequency and energy of collisions is increased

What is the activation energy?

The minimum energy needed to begin a reaction

The quantity of heat absorbed in a reaction

The energy given off after reactants collide.

The energy difference between reactants and products

Define chemical equilibrium.

The rate of a forward reaction is equal to the rate of the reverse reaction.

The concentration of the reactants is equal to the concentration of the products.

The reaction stops and no further change in concentration occurs.

Which of the following is NOT true at equilibrium?

The concentration of the reactants is equal to the concentration of the products.

The forward and reverse reactions proceed at the same rate.

The concentrations of reactants and products do not change.

The forward and reverse reactions continue to occur.

Why is equilibrium called a dynamic state?

The reactions at equilibrium continue to take place once equilibrium is established.

Chemists try to convert as much reactants as possible into products.

The products of a forward reaction are favored, so equilibrium lies to the right.

All chemical reactions are considered to be reversible under suitable conditions.

During equilibrium, the rates of the forward and the reverse reaction are ________

unequal for exothermic reactions

unequal for endothermic reactions

If the equilibrium constant is much greater than one (K >> 1) then

Equilibrium lies to the right (products are favored)

Equilibrium is not established.

Equilibrium lies to the left (reactants are favored)

Neither products or reactants are favored.

If the equilibrium constant is much less than one (K << 1) then

Equilibrium lies to the left (reactants are favored)

Equilibrium is not established.

Equilibrium lies to the right (products are favored)

Neither products or reactants are favored.

What will happen when Q c is greater > than K c ?

Equilibrium will shift to the left to decrease Q c

Equilibrium contain more reactants than products

Equilibrium will shift to the right to increase Q c

What will happen when Q c is less < than K c ?

Equilibrium will shift to the right to increase Q c

Equilibrium contain more products than reactants

Equilibrium will shift to the left to decrease Q c

Equilibrium and Le Chatelier

10th Grade - University

•

60 Qs

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Equilibrium and Le Chatelier

Quiz

•

Chemistry

•

10th Grade - University

•

Practice Problem

•

Hard

•

NGSS

HS-PS1-5, HS-PS1-6, HS-PS1-4

Standards-aligned

Charles Martinez

FREE Resource

60 questions

Show all answers

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The following factors affect the position of equilibrium EXCEPT

Concentration

Pressure

Temperature

States of matter

2SO_2(g)+O_2(g)⇌ 2SO_3(g) + Heat

Adding SO_2(g)will

shift equilibrium right

shift equilibrium left

increase rate of reaction

have no change

2SO₂(g)+O₂(g) ⇌ 2SO₃(g) + Heat

Increasing the temperature will...

shift equilibrium right

shift equilibrium left

increase pressure

have no change

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

2SO_2(g) + O_2(g) ⇌ 2SO_3(g)+ Heat

Removing O_2(g) will

shift equilibrium right

shift equilibrium left

increase pressure

have no change

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

2SO₂(g)+O₂(g) ⇌ 2SO₃(g) + Heat

Adding SO₃(g) will

shift equilibrium right

shift equilibrium left

increase K

have no change

2SO₂(g)+1O₂(g) ⇌ 2SO₃(g) + Heat

Increasing the volume of the container will...

shift equilibrium right

shift equilibrium left

slow rate of reaction

have no change

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

2SO₂(g)+1O₂(g) ⇌ 2SO₃(g) + Heat

Increasing the pressure on the system will...

shift equilibrium right

shift equilibrium left

slow rate of reaction

have no change

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Equilibrium and Le Chatelier

60 questions

The following factors affect the position of equilibrium EXCEPT

2SO_2(g)+O_2(g)⇌ 2SO_3(g) + Heat

Adding SO_2(g)will

2SO₂(g)+O₂(g) ⇌ 2SO₃(g) + Heat

Increasing the temperature will...

2SO_2(g) + O_2(g) ⇌ 2SO_3(g)+ Heat

Removing O_2(g) will

2SO₂(g)+O₂(g) ⇌ 2SO₃(g) + Heat

Adding SO₃(g) will

2SO₂(g)+1O₂(g) ⇌ 2SO₃(g) + Heat

Increasing the volume of the container will...

2SO₂(g)+1O₂(g) ⇌ 2SO₃(g) + Heat

Increasing the pressure on the system will...

2SO₂(g) + O₂(g) ⇌ 2SO₃(g) + Heat

Using a catalyst

This symbol indicates that a reaction is ____________

Changes in pressure will only affect substances that are in the __________ state.

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Equilibrium and Le Chatelier

60 questions

The following factors affect the position of equilibrium EXCEPT

2SO2(g)+O2(g) ⇌ 2SO3(g) + HeatAdding SO2(g) will

2SO2(g)+O2(g) ⇌ 2SO3(g) + HeatIncreasing the temperature will...

2SO2(g) + O2(g) ⇌ 2SO3(g) + HeatRemoving O2(g) will

2SO2(g)+O2(g) ⇌ 2SO3(g) + HeatAdding SO3(g) will

2SO2(g)+1O2(g) ⇌ 2SO3(g) + HeatIncreasing the volume of the container will...

2SO2(g)+1O2(g) ⇌ 2SO3(g) + HeatIncreasing the pressure on the system will...

2SO2(g) + O2(g) ⇌ 2SO3(g) + HeatUsing a catalyst

This symbol indicates that a reaction is ____________

Changes in pressure will only affect substances that are in the __________ state.

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Chemistry

2SO_2(g)+O_2(g)⇌ 2SO_3(g) + Heat

Adding SO_2(g)will

2SO₂(g)+O₂(g) ⇌ 2SO₃(g) + Heat

Increasing the temperature will...

2SO_2(g) + O_2(g) ⇌ 2SO_3(g)+ Heat

Removing O_2(g) will

2SO₂(g)+O₂(g) ⇌ 2SO₃(g) + Heat

Adding SO₃(g) will

2SO₂(g)+1O₂(g) ⇌ 2SO₃(g) + Heat

Increasing the volume of the container will...

2SO₂(g)+1O₂(g) ⇌ 2SO₃(g) + Heat

Increasing the pressure on the system will...

2SO₂(g) + O₂(g) ⇌ 2SO₃(g) + Heat

Using a catalyst