Le Chatlier Principle

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

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

The following factors affect the position of equilibrium EXCEPT

• Concentration
• Pressure
• Temperature
• States of matter

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

2SO₂(g)+O₂(g) ⇌ 2SO₃(g) + Heat

Increasing the temperature will...

• shift equilibrium right

• shift equilibrium left

• increase pressure

• have no change

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

2SO₂(g) + O₂(g) ⇌ 2SO₃(g) + Heat

Using a catalyst

• shift equilibrium right

• shift equilibrium left

• increase the rate of reaction

• have no change

1N₂ + 3H₂ →2NH₃

When the pressure on the system is increased, the equilibrium position shifts to the right. Why?

• To increase the amount of products

• To reduce the pressure, as the right side has fewer molecules of gas

• K_eq will increase when it is shifted to the right

• To increase the pressure, as the right side has more molecules of gas

What happens to the equilibrium if we add methane (CH₄)?

• It shifts left, towards the reactants

• It shifts right, towards the products

• It does not shift

Tags

NGSS.HS-PS1-5

What is chemical equilibrium?

• When the forward reaction is faster than the reverse

• When the reverse reaction has stopped

• When the forward reaction is slower than the reverse

• When the forward and reverse reactions occur at the same rate

Tags

NGSS.HS-PS1-6

What is this reaction known as

N₂ + 3H₂ ⇌ 2NH₃

• Le Chatelier's process

• Kroll Process

• Haber process

• Contact Process

This symbol indicates that a reaction is ____________

• reversible
• irreversible

Tags

NGSS.HS-PS1-6

For the reaction...
N_{2 (g)} +  3 H_2 (g) <=> 2 NH_{3 (g)}

If the pressure in the system is increased,  which substance(s) will increase in concentration?

• N₂  (as 2 mol gas  → 4 mol gas)
• H₂ (as 2 mol gas  → 4 mol gas)
• N₂ and H₂ (as 2 mol gas  → 4 mol gas)
• NH₃ (as 4 mol gas  → 2 mol gas)

Tags

NGSS.HS-PS1-5