Le Chatelier's Principle

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

• shift equilibrium right
• shift equilibrium left
• increase pressure
• have no change

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

• shift equilibrium right
• shift equilibrium left
• decrease pressure
• have no change

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

• shift equilibrium right
• shift equilibrium left
• increase rate of reaction
• have no change

Tags

NGSS.HS-PS1-5

2SO₂(g)+O₂(g)⇌2SO₃(g)
Decreasing volume of container will

• shift equilibrium right
• shift equilibrium left
• change K
• have no change

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

• the same 
• unequal
• unequal for exothermic reactions
• unequal for endothermic reactions

Tags

NGSS.HS-PS1-6

N_{2 (g)} + 3H_{2 (g)} < -> 2NH_{3 (g)} + Heat

Add Heat

• Shift Left

• Shift Right

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-4

Heat + N₂O_{4 (g)} ⇆ 2NO_{2 (g)}

Add Heat

• Shift Left

• Shift Right

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-4

Heat + N₂O_{4 (g)} ⇆ 2NO_{2 (g)}

Add N₂O_{4 (g)}

• Shift Left

• Shift Right

Tags

NGSS.HS-PS1-5

Equilibrium for 2CrO₄^2- + 2H⁺→Cr₂O₇^2- + H₂O. What happen when OH^- ions are added to the system?

• Position of equilibrium will shift to right
• Color of system will turn from orange to yellow
• K_c will decrease
• OH^- ions will not react, and thus no change is seen.

Tags

NGSS.HS-PS1-5

Equilibrium for 2CrO₄^2- + 2H⁺ → Cr₂O₇^2- + H₂O. What happen when H⁺ ion are added to the system?

• Position of equilibrium will shift to left
• Color of system will turn from orange to yellow
• K_c will be higher
• Equilibrium will shift to right to decrease the added H⁺ ion

Tags

NGSS.HS-PS1-5