Dynamic Equilibrium

Which is the reactant and why?

• it's concentration is decreasing

• it's concentration is increasing

• it's concentration is decreasing

• it's concentration is increasing

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 concentrations of reactants and products do not change.

• The concentration of the reactants is equal to the concentration of the products.

• The forward and reverse reactions continue to occur.

At what time is dynamic equilibrium established?

• 1 second

• 5 seconds

• 8 seconds

• 10 seconds

What is the purpose of a catalyst on an equilibrium reaction?

• to increase the rate of forward reaction

• to increase rate of backward reaction

• in increase both forward and backward reaction rates

• no effect

Tags

NGSS.HS-PS1-6

What is the relationship between the forward rate of reaction and the reverse rate of reaction in a reversible reaction at equilibrium?

• forward is greater

• reverse is greater

• the two are equal

• can not determine unless you know the rate law and k.

At what time on the graph will the reaction reach equilibrium?

• t₁

• t₂

• t₃

• t₄

Tags

NGSS.HS-PS1-6

Wich factors can stress equilibrium

• Pressure

• Temperature

• Weather

• Concentration

Tags

NGSS.HS-PS1-6

What does dynamic equilibrium mean?

• When forwards and backwards reactions in a reversible reaction are occurring at the same time and rate.

• When products are being made at a constant speed

• When the products are turning into reactants again

Dynamic equilibrium only occurs in closed systems. What does this mean?

• Where there is loss of products

• Where there is no loss of reactants or products

• Where there is loss of reactants

Tags

NGSS.HS-PS1-6

Write a balanced symbol equation for the answer to question four

• H₂(g) + Co₂(g) <----> 2NH₃(g)

• N₂(g) + H₂(g) <----> 2CO₃(g)

• N₂(g) + H₂(g) <----> 2NH₃(g)

Tags

NGSS.HS-PS1-7