Chemical Equilibrium

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

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

• gaseous
• liquid
• solid
• plasma

This symbol indicates that a reaction is ____________

• reversible
• irreversible

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

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

For the reaction...
heat  +  N₂  +  O₂  ↔  2NO
If the heat is added to the chemical system, the equilibrium will shift _______.

• left
• right
• left and right
• neither left nor right

Tags

NGSS.HS-PS1-5

Which of the following is NOT true at equilibrium?

• The forward and reverse reactions proceed at the same rate.

• The amount (concentration) of reactants and products do not change.

• The amount (concentration) of the reactants is equal to the concentration of the products.

• The forward and reverse reactions continue to occur.

Tags

NGSS.HS-PS1-6

Which of the two graphs reaches equilibrium?

• The left one.
• The right one.
• Both of them.
• Neither.

At what time (in seconds) is equilibrium established?

• 0 seconds
• 1 second
• 5 seconds
• 10 seconds

When the rate of the forward reaction is equal to the rate of backward reaction, the system is said to be in

• Chemical Equilibrium
• Chemical Balance
• Chemical Constant
• Chemical Reaction

Tags

NGSS.HS-PS1-6