Reversible and Irreversible Reactions
Chemistry ⇒ Chemical Reactions and Equations
Reversible and Irreversible Reactions starts at 9 and continues till grade 12.
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Describe how the addition of a catalyst affects a reversible reaction at equilibrium.
Describe the effect of pressure on the equilibrium of a reversible reaction involving gases.
Describe the role of temperature in shifting the equilibrium of a reversible exothermic reaction.
Describe what is meant by dynamic equilibrium in the context of reversible reactions.
Explain the effect of removing a product from a reversible reaction at equilibrium.
Explain the main difference between reversible and irreversible reactions.
Explain why precipitation reactions are generally considered irreversible.
Explain why the reaction between hydrochloric acid and sodium hydroxide is considered irreversible.
Which of the following best describes a reversible reaction? (1) The reaction proceeds only in the forward direction, (2) The reaction can proceed in both forward and backward directions, (3) The reaction stops once products are formed, (4) The reaction requires a catalyst to proceed.
Which of the following conditions can shift the equilibrium position of a reversible reaction? (1) Change in temperature, (2) Change in pressure, (3) Change in concentration, (4) All of the above.
Which of the following is a correct representation of a reversible reaction? (1) →, (2) ←, (3) ⇌, (4) ↔
Which of the following is a feature of an irreversible reaction? (1) Attains dynamic equilibrium, (2) Proceeds to completion, (3) Both forward and backward reactions occur at the same rate, (4) Can be reversed by changing conditions.
Fill in the blank: In a chemical equation, the symbol '→' indicates an ________ reaction.
Fill in the blank: In a reversible reaction, chemical equilibrium is achieved when the concentrations of reactants and products remain ________ over time.
Fill in the blank: In a reversible reaction, the rates of the forward and backward reactions are ________ at equilibrium.
Fill in the blank: In an irreversible reaction, the reaction proceeds in ________ direction(s).
State whether the following statement is true or false: All physical changes are reversible, while all chemical changes are irreversible.
State whether the following statement is true or false: At equilibrium, the rate of the forward reaction equals the rate of the backward reaction in a reversible reaction.
State whether the following statement is true or false: In a reversible reaction, increasing the concentration of reactants will shift the equilibrium towards the products.
State whether the following statement is true or false: In a reversible reaction, the backward reaction is always slower than the forward reaction at equilibrium.
