Le Chatelier's Principle

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

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

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

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

NGSS.HS-PS1-6

2SO₂(g)+O₂(g)⇌2SO₃(g) is an exothermic reaction.
an in Increase temperature will...

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

Tags

NGSS.HS-PS1-5

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

• shift equilibrium right
• shift equilibrium left
• increase rate of reaction but not shift the equilibrium
• have no change at all

 A_(g) + B_(aq) <> C_(s)   
ΔH= 240 kJ/mol
If the volume increases then the reaction will shift to the _______. 

• left 
• right 
• stays the same
• up 

 A_(g) + B_(aq) <> C_(s)  + D_(s) 
ΔH= 240 kJ/mol
If the pressure decreases then the reaction will shift to the _____. 

• left
• right
• stays the same 
• Up

  A_(g) + B_(aq) <> C_(s)  + D_(s) 
ΔH= 240 kJ/mol
If temperature is increased then the reaction shifts to the _______. 

• Left
• Right
• Stays the same
• Up

Tags

NGSS.HS-PS1-4

NGSS.HS-PS1-5

For the reaction...
H_{2 (g)}  + Cl_{2 (g)} <−>  2HCl _(g)  +  heat
If the pressure in the system is increased, the equilibrium will _______.

• shift left
• shift right
• not shift

At what time does the reaction reach equilibrium?

• t₁
• t₂
• t₃
• t₄

Tags

NGSS.HS-PS1-5

9kJ+2SO₂+O₂↔2SO₃ 
If pressure decreases?

• Shift Right
• Shift Left
• No Change
• Shift both left and right