LeChatelier's Principle Class Practice

What is 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

For the reaction...
SO_2(g) + O_2(g) <−>  SO_3(g)
If the concentration of SO_2(g)  is increased, the equilibrium of the reaction will ___________.

• shift to the left
• shift to the right
• not shift

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

For the reaction...
SO_2(g) + O_2(g) <−>  SO_3(g)
If the equilibrium shifts to the right, the concentration of O_2(g) will ___________.

• increase
• decrease
• remain the same

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

For the reaction...
SO_2(g) + O_2(g) <−>  SO_3(g)
If the equilibrium shifts to the right, the concentration of SO_3(g) will ___________.

• increase
• decrease
• remain the same
• double

Tags

NGSS.HS-PS1-6

For the reaction...
SO_2(g) + O_2(g) <−>  SO_3(g)
If the concentration of O_2(g)  is decreased, the equilibrium of the reaction will ___________.

• shift to the left
• shift to the right
• not shift

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

For the reaction...
SO_2(g) + O_2(g) <−>  SO_3(g)
If the equilibrium shifts to the left, the concentration of SO_3(g) will ___________.

• increase
• decrease
• stay the same
• triple

Tags

NGSS.HS-PS1-6

For the reaction...
energy +  N_2(g)  +  O_2(g)  <−>  2NO_(g)
If  O_2(g) is removed, the  concentration of N₂ will _______.

• increase
• decrease
• remain the same
• double

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

For the reaction...
energy +  N_2(g)  +  O_2(g)  <−>  2NO_(g)
If  NO_(g) is removed  from the system, the concentration of N_2(g) will _______.

• increase
• decrease
• remain the same
• double

A +  B <--> C + D   ΔH= 151kJ
Rewrite the above equation with energy as a reactant or product:

• A +  B <--> C + D + energy
• A +  B + energy <--> C + D 

Tags

NGSS.HS-PS1-4

A +  B <--> C + D   ΔH= -151kJ
Rewrite the above equation with energy as a reactant or product:

• A +  B <--> C + D + energy
• A +  B + energy <--> C + D 

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-2