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WorksheetsChemical Equilibrium
Total questions: 18
Worksheet time: 58mins
For the reaction...
SO2 + O2 ⇌ SO3
If the concentration of SO2 is increased, the equilibrium of the reaction will shift ___________.
left
right
left and right
neither left nor right
Removing O2(g) will
What are [C] and [D]?
concentration of reactants
concentration of products
energy of reactants
energy of products
Such reactions which continue in both directions are called:
Irreversible reactions
Reversible reactions
Non-reactive reactions
dynamic reactions
heat + N2 + O2 ↔ 2NO
If the heat is added to the chemical system, the equilibrium will shift _______.
Use the following reaction to answer the following questions.
Reaction: N2(g) + 3H2(g) ⇌ 2NH3(g)
Which way will the equilibrium shift when the concentration of H2 is decreased?
The equilibrium shifts to the left.
The equilibrium shifts to the right.
The equilibrium does not change.
The equilibrium constant changes.
Use the following reaction to answer the following questions.
Reaction: N2(g) + 3H2(g) ⇌ 2NH3(g)
Which way will the equilibrium shift when the concentration of NH3 is increased?
The equilibrium shifts to the left.
The equilibrium shifts to the right.
The equilibrium does not change.
The equilibrium constant changes.
If a stress is applied to a system at equilibrium, the system shifts in the direction that relieves the stress. This statement is called what?
common ion
solubility product constant
heterogeneous equilibrium)
Le Châtelier’s principle
chemical equilibrium
heat + N2 + O2 ↔ 2NO
If the heat is added to the chemical system, the equilibrium will shift _______.
Consider the following system at equilibrium:
CH4(g) + 2H2O (g) ↔ CO2 (g) + 4H2O (g)
Suppose the concentration of CH4 decreased, in which direction does the reaction shift to reestablish equilibrium?
The reaction shifts to the left
The reaction shifts to the right
H2(g)+Cl2(g)⇌2HCl(g)
Removing Cl2(g) will
shift equilibrium right
shift equilibrium left
increase pressure
have no change
The reaction 2ICl(s) ⇌ I2 (s) + Cl2 (g) is at equilibrium. Which change will increase the yield of Cl2
removing some of the I2 (s)
adding more ICl(s)
removing the Cl2 as it is formed
decreasing the volume of the container
What does the term 'dynamic equilibrium' refer to in a chemical reaction?
A state where the concentrations of reactants and products remain constant because the reaction has stopped.
A state where the forward and reverse reactions occur at the same rate, resulting in constant concentrations of reactants and products.
A state where all reactants have been completely converted into products.
A state where the reaction proceeds in one direction only, without any reverse reaction.
In a chemical reaction at equilibrium, what is the effect of decreasing the concentration of a product?
The equilibrium shifts to favor the reactants
The equilibrium shifts to favor more product formation
The equilibrium position does not change
The equilibrium constant decreases
What does the equilibrium constant ( Keq ) express in a chemical reaction?
The rate at which reactants are converted into products
The ratio of the concentration of products to reactants at equilibrium
The speed at which equilibrium is reached
The temperature dependence of the reaction
