Dynamic equilibrium

This symbol indicates that a reaction is ____________

• reversible
• irreversible

Tags

NGSS.HS-PS1-6

Which of the following is incorrect? 
A dynamic equilibrium can be achieved...

• From 100% reactants
• From 100% products
• In a closed system
• In an open system

When the rate of the forward reaction is equal to the rate of backward reaction, the system is said to be in

• Chemical Equilibrium
• Chemical Balance
• Chemical Constant
• Chemical Reaction

Tags

NGSS.HS-PS1-5

Define chemical equilibrium.

• A reaction is reversible.
• The concentration of the reactants is equal to the concentration of the products.
• The rate of a forward reaction is equal to the rate of the reverse reaction.
• The reaction stops and no further change in concentration occurs.

At equilibrium, __________.

• all chemical reactions have ceased

• the rates of the forward and reverse reactions are equal

• the rate constants of the forward and reverse reactions are equal

• the value of the equilibrium constant is 1

• ) the limiting reagent has been consumed

When the system A + B C + D is at dynamic equilibrium

• the sum of the concentrations of A and B must equal the sum of the concentrations of C and D.

• ,the forward reaction has stopped.

• both the forward and the reverse reactions have stopped.

• the reverse reaction has stopped

• neither the forward nor the reverse reaction has stopped.

Tags

NGSS.MS-PS1-5

Around what time does the reaction reach equilibrium?

• 25 min

• 45 min

• 70 min

• 80 min

Tags

NGSS.MS-PS1-2

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

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