Lechatelier's Principle Concentration Effects

The following factors affect the position of equilibrium EXCEPT

• Concentration
• Pressure
• Temperature
• States of matter

Tags

NGSS.HS-PS1-5

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

• shift equilibrium right
• shift equilibrium left
• decrease temperature
• 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)
Adding SO₃(g) will

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

Tags

NGSS.HS-PS1-5

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

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

2SO₂(g)+O₂(g)⇌2SO₃(g)

Increasing pressure of container will

• shift equilibrium right

• shift equilibrium left

• slow rate of reaction

• have no change

For N₂ + 3H₂ →2NH₃ . When pressure is increased the equilibrium shift to right. Why?

• To increase the amount of products

• To reduce the pressure, as the right has less molecules

• K_c will increase when it is shifted to the right

• So it will increase the rate of reaction

N₂O₄ → NO₂ (endothermic). Why when temperature is increased is the position of equilibrium shifted to the RIGHT?

• Forward reaction is endothermic, thus reducing the temp

• Forward reaction is exothermic, thus reducing the temp

• Forward reaction is endothermic, thus increasing the temp

• Forward reaction is exothermic, thus increasing the temp

Tags

NGSS.HS-PS1-4

NGSS.HS-PS1-5

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

• the system will adjust to increase the stress
• the system will adjust to reduce the stress
• the system will not adjust

Tags

NGSS.HS-PS1-6

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

• gaseous
• liquid
• solid
• plasma