Factors Affecting Equilibrium

The three factors that affect the equilibrium of a reaction are temperature, pressure and __________.

• concentration

• entropy

• enthalpy

• catalyst

• reactivity

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

2SO₂(g)+1O₂(g) ⇌ 2SO₃(g) + Heat

Increasing the pressure on the system will...

• shift equilibrium right

• shift equilibrium left

• slow rate of reaction

• have no change

What would happen when H₂O is added?

• Position of equilibrium will shift to left (and become more blue)

• Position of equilibrium will shift to right (and become more pink)

• K_eq will increase as H₂O is added

• Position of equilibrium will shift to left to reduce the added H₂O

Tags

NGSS.HS-PS1-5

What are the two factors to look for when determining if the reaction is at equilibrium?

• Forward reaction rate is faster than the reverse and concentrations are equal

• Forward and reverse reaction rates are equal and concentration is constant

• Forward and revers reaction rates are equal and concentration is equal

• Forward reaction rate is faster than the reverse and concentration is equal

A very high value for K indicates that

• reactants are favored.

• products are favored.

• equilibrium is reached slowly.

• equilibrium has been reached

Tags

NGSS.HS-PS1-6

What will happen when CI^- ions are added?

• Position of equilibrium will shift to left and become more pink

• Color of system will turn to all pink

• Concentration of reactants and products remain unchanged

• Position of equilibrium will shift to left to reduce the added CI^- ions

Tags

NGSS.HS-PS1-5

2CrO₄^2- + 2H⁺ → Cr₂O₇^2- + H₂O

What will happen when H⁺ ions are added to the system?

• Position of equilibrium will shift to left and become more yellow

• Color of system will turn all yellow

• Color of system will turn all orange

• Equilibrium will shift to right and become more orange

Tags

NGSS.HS-PS1-5

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

• shift equilibrium right

• shift equilibrium left

• decrease temperature

• have no effect on equilibrium

• have a major effect on the equilibrium constant

SO₂(g)+O₂(g)⇌2SO₃(g) Adding SO₂(g) will ________________ .

• shift equilibrium right

• shift equilibrium left

• increase rate of reaction

• have no effect on reaction equilibrium

• have an effect on the equilibrium constant only

Tags

NGSS.HS-PS1-5