Equilibrium Review

A reaction that can occur in both the forward and the reverse directions is called what?

• reversible reaction

• law of chemical equilibrium

• equilibrium constant

• homogeneous equilibrium

Tags

NGSS.HS-PS1-6

At what time does the reaction reach equilibrium?

• t₁
• t₂
• t₃
• t₄

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

This symbol indicates that a reaction is ____________

• reversible
• irreversible

Tags

NGSS.HS-PS1-6

If a stress is applied to a system at equilibrium, the system shifts in the direction that relieves the stress. This statement is called what?

• common ion

• solubility product constant

• Le Châtelier’s principle

• chemical equilibrium

In a exothermic reaction heat is

• being absorbed so on the product side

• being absorbed so on the reactant side

• being released so on the product side

• being released so on the reactant side

Tags

NGSS.HS-PS1-4

In a endothermic reaction heat is

• being absorbed so on the product side

• being absorbed so on the reactant side

• being released so on the product side

• being released so on the reactant side

Tags

NGSS.HS-PS1-4

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

• gaseous
• liquid
• solid
• plasma

For the reaction...

SO₂ + O₂ ⇌ SO₃

If the concentration of SO₂ is increased, the equilibrium of the reaction will shift ___________.

• left

• right

• left and right

• neither left nor right

Tags

NGSS.HS-PS1-5

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

• H₂

• N₂ and H₂

• NH₃

Tags

NGSS.HS-PS1-6

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

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

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6