Equilibrium
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
The state of dynamic equilibrium
SubtopicThe state of dynamic equilibrium under Equilibrium for Grade 12 IB.
Preview questions (no answers)
- 1.
Dynamic equilibrium can be established in which type of change?
A.Only chemical changes.
B.Only physical changes.
C.Both chemical and physical changes.
D.Neither chemical nor physical changes.
- 2.
In the reaction , what happens to the rate of the forward reaction as and are consumed?
A.It increases.
B.It decreases.
C.It remains constant until the end.
D.It oscillates up and down.
- 3.
Which statement about the concentration of reactants at equilibrium is correct?
A.It must be equal to the concentration of products.
B.It must be zero.
C.It must be constant.
D.It must be exactly half of the initial concentration.
Download the worksheet for Equilibrium - The state of dynamic equilibrium to practice offline. It includes additional chapter-level practice questions.
The equilibrium law (HL only)
SubtopicThe equilibrium law (HL only) under Equilibrium for Grade 12 IB.
Preview questions (no answers)
- 1.
For the reaction , if the concentration of is increased by adding more at equilibrium, what happens to the value of ?
A.It increases.
B.It decreases.
C.It remains the same.
D.It shifts to the right.
- 2.
Which statement about the equilibrium constant is always correct?
A.It is independent of temperature.
B.It is independent of the initial concentrations of reactants.
C.It is the same for all reactions.
D.It depends on the volume of the reaction vessel.
- 3.
In the context of the equilibrium law, what does a large positive value for imply about ?
A.is very large and the reaction favors products.
B.is very small and the reaction favors reactants.
C.is zero.
D.is equal to 1.
Download the worksheet for Equilibrium - The equilibrium law (HL only) to practice offline. It includes additional chapter-level practice questions.