Reversible and Irreversible chemical reactions

Reversible and Irreversible chemical reactions

12th Grade

15 Qs

quiz-placeholder

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Reversible and Irreversible chemical reactions

Reversible and Irreversible chemical reactions

Assessment

Quiz

Chemistry

12th Grade

Hard

Created by

Emmanuel Ruwona

Used 2+ times

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a reversible reaction?
A reaction that can proceed in both the forward and reverse directions.
A reaction that can only proceed in one direction.
A reaction that cannot occur without a catalyst.
A reaction where products can never reform the reactants.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a feature of an irreversible reaction?
The reaction proceeds to completion.
The reaction can proceed in both directions.
Reactants and products are in dynamic equilibrium.
The rate of the forward reaction equals the rate of the reverse reaction.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the position of equilibrium refer to in a reversible reaction?
The relative concentrations of reactants and products at equilibrium.
The physical location where the reaction occurs.
The temperature at which the reaction is most efficient.
The pressure needed to initiate the reaction.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a closed system, when does a reversible reaction reach equilibrium?
When the rate of the forward reaction equals the rate of the reverse reaction.
As soon as the reactants are mixed together.
When the temperature of the system is increased.
When all reactants are used up.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is Le Chatelier's principle?
A system at equilibrium will respond to a disturbance by counteracting the change.
The rate of a chemical reaction is directly proportional to the product of the reactant concentrations.
The total energy in a closed system remains constant.
The pressure and volume of a gas are inversely proportional at constant temperature.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What effect does an increase in temperature have on an exothermic reaction at equilibrium?
Shifts the equilibrium towards the reactants.
Shifts the equilibrium towards the products.
Does not affect the equilibrium.
Increases the rate of the reverse reaction only.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which factor does not change the position of equilibrium in a chemical reaction?
Presence of a catalyst.
Change in concentration of reactants or products.
Change in temperature.
Change in pressure.

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