Dynamic Equilibrium

What does the term "dynamic equilibrium" imply?

• It is an exciting way to look at reactions.

• There is a balance reached between two things.

• A stable situation has been achieved but it is actually constantly changing.

• That the equilibrium is dynamic.

Tags

NGSS.HS-PS1-6

 This symbol indicates that a reaction is ___________

• not changing

• reversible 

• irreversible

• indecisive

Tags

NGSS.HS-PS1-6

Identify the incorrect statement about achieving equilibrium.

• achieved when product and reactant concentrations are equal

• achieved when concentration of reactants is stable/constant

• achieved when forward and reverse reaction rates are same

• achieved when concentration ratio of reactants to products becomes stable, thus fixing the equilibrium constant (equilibrium position)

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

• to the left

• to the right

• to the left and right

• no change

What is the difference between K and k

• one is capitalized and one is not

• one is the forward constant and one is the reverse constant

• one is kelvin temperature and one is the spring constant

• one is the equilibrium constant and one is the rate constant

Consider the sulfur trioxide synthesis reaction again:

Which of the following will NOT shift the equilibrium to the right?

• add mor O₂

• increase the pressure

• add catalyst

• lowering the temperature

Who is LeChatelier's principle named after?

• Hess

• Mr Chat Lier

• A French dude

• Monsieur Le Chatelier

LeChatelier's principle says that if a chemical reaction at equilibrium is disturbed by changing conditions, the reaction will...

• equal and opposite motion

• not change, because equilibrium means equal

• will adjust to amplify the changed conditions

• will shift appropriately to counteract the change.

Which is the reactant and why?

• A, it's concentration is decreasing

• A, it's concentration is increasing

• B, it's concentration is decreasing

• B, it's concentration is increasing

Tags

NGSS.HS-PS1-5

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

• t₁

• t₂

• t₃

• t₄

Tags

NGSS.HS-PS1-5