LeChatlier's Principle

Define LeChatelier's Principle

• Stresses do not shift a reaction

• Equilibrium does not exist

• A stress only shifts a reaction to the right

• A reaction at equilibrium will shift to relieve a stress

Identify 3 factors that can cause a stress to a reaction that is at equilibrium, according to LeChatelier's Principle.

• Temperature

  Concentration

  Pressure

• Temperature

  Stirring

  Increase Surface Area

• Temperature

  Catalyst

  Heating

• Nothing stresses me

Tags

NGSS.HS-PS1-5

2SO₂ (g) + O₂ (g) ⇌ 2SO₃ (g) + heat

Adding SO₃ (g) will ___.

• shift the equilibrium right

• shift the equilibrium left

• increase the value of the equilibrium constant

• have no change in equilibrium

2SO₂ (g) + O₂ (g) ⇌ 2SO₃ (g) + heat

Removing O₂ (g) will ___.

• shift the equilibrium right

• shift the equilibrium left

• increase the value of the equilibrium constant

• have no change in equilibrium

2SO₂ (g) + O₂ (g) ⇌ 2SO₃ (g) + heat

Increasing the pressure of the container will...

• shift the equilibrium right

• shift the equilibrium left

• increase the value of the equilibrium constant

• have no change in equilibrium

2SO₂ (g) + O₂ (g) ⇌ 2SO₃ (g) + heat

Increasing the VOLUME of the container will...

• shift the equilibrium right

• shift the equilibrium left

• increase the value of the equilibrium constant

• have no change in equilibrium

2SO₂ (g) + O₂ (g) ⇌ 2SO₃ (g) + heat

Adding a catalyst to the reaction will...

• shift the equilibrium right

• shift the equilibrium left

• increase the value of the equilibrium constant

• have no change in equilibrium

2SO₂ (g) + O₂ (g) ⇌ 2SO₃ (g) + heat

Increasing the temperature of the container will...

• shift the equilibrium right

• shift the equilibrium left

• increase the value of the equilibrium constant

• have no change in equilibrium

2SO₂ (g) + O₂ (g) ⇌ 2SO₃ (g) + heat

Adding SOLID SO₂ to the reaction will...

• shift the equilibrium right

• shift the equilibrium left

• increase the value of the equilibrium constant

• have no change in equilibrium

Co(H₂O)₆⁺² + 4 Cl^-1  ↔  CoCl₄^-2 + 6 H₂O

 Pink ↔ Blue

When heat is added to the reaction, a color change of pink to blue occurs as seen in the image provided. This indicates that the reaction is...

• Endothermic

• Exothermic

• Not enough information given

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4