Thermo and Equilibrium

Which of the following does not decrease the rate of reaction?

• Decrease concentration

• Decrease temperature

• Add a catalyst

• Add an inhibitor

Tags

NGSS.HS-PS1-5

What will happen if heat is added to an exothermic reaction?

• Reaction will shift towards reactants

• Reaction will shift toward products

• No shift will occur

• Increase the rate of reaction in both directions

Tags

NGSS.HS-PS1-6

Which of the following is NOT true about chemical equilibrium?

• Amount of reactants equals the amount of products

• Rate of the forward reaction equals the rate of the reverse reaction

• Concentration of reactants and products in constant

• It is dynamic and continuously reacting

Tags

NGSS.HS-PS1-6

Which of the following will cause a shift in equilibrium?

• Adding a catalyst

• Adding a pure solid

• Adding a pure liquid

• Adding a gas

Tags

NGSS.HS-PS1-6

Which of the following is true about endothermic reactions? Select all that apply.

• The reaction feels cold

• The reaction feels warm

• ΔH is negative

• ΔH is postive

Tags

NGSS.HS-PS1-4

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

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

2SO₂(g)+O₂(g)⇌2SO₃(g)

Increasing the pressure

• shift equilibrium right

• shift equilibrium left

• slow rate of reaction

• have no change

___ is the amount of energy transferred between the reaction and the surrounding

• Enthalpy

• Activation Energy

• Endothermic

• Exothermic

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

Which of the following are included in equilibrium expressions? Select all that apply.

• Solids

• Liquids

• Gases

• Aqueous

Which letter corresponds to the activation energy of the forward reaction?

• A
• B
• C
• D