2.3.1 Dynamic Equilibrium Concept

• What is chemical equilibrium defined as?

  Forward and reverse reactions occur at the same rate
• What type of reaction is a reaction at chemical equilibrium?

  Reversible reaction
• Dynamic equilibrium occurs when the forward and reverse reactions continue at equal rates, resulting in no net change in concentrations.


  True
• At dynamic equilibrium, there is no net change in the concentrations of reactants and products.


  True
• What characterizes the rate of forward and reverse reactions at chemical equilibrium?

  Equal rates
• In a chemical equilibrium, the forward and reverse reactions continue to occur, but at the same rate
• At chemical equilibrium, the rate of the forward reaction is initially faster than the reverse reaction.

  False
• Unlike static equilibrium, dynamic equilibrium involves continuous activity maintaining stable concentrations.


  True
• Which reaction exemplifies dynamic equilibrium in the hydrogen-iodine system?

  H₂ + I₂ ⇌ 2HI
• Match the system state with its equilibrium type:

  Static Equilibrium ↔️ Stable, non-changing state

  Dynamic Equilibrium ↔️ Stable, continuously active state
• At chemical equilibrium, the concentrations of reactants and products remain constant over time.


  True
• What happens to the rates of the forward and reverse reactions at chemical equilibrium?

  Rates are equal
• What is the key difference between static and dynamic equilibrium?

  Static reactions cease completely
• Which gas maintains a constant concentration in water due to dynamic equilibrium?

  Carbon dioxide
• The concentrations of reactants and products remain constant over time in a chemical equilibrium.


  True
• Match the feature with the correct reaction type:

  Forward Reaction ↔️ Reactants to Products

  Reverse Reaction ↔️ Products to Reactants
• What is the key feature of dynamic equilibrium in terms of reaction rates?

  Equal forward and reverse rates
• In the example of water evaporation, water molecules are constantly evaporating and condensing
• Dynamic equilibrium involves a continuous exchange between reactants and products.


  True
• Chemical equilibrium is a state where the forward and reverse reactions occur at the same rate
• In a forward reaction, reactants are converted into products
• In dynamic equilibrium, the forward and reverse reactions occur continuously at the same rate
• Water evaporation is an example of dynamic equilibrium
• Chemical equilibrium is a state where the forward and reverse reactions occur at the same rate
• What are the two main processes in a reversible chemical reaction?

  Forward and reverse reactions
• At chemical equilibrium, the rates of the forward and reverse reactions are equal
• Match the feature with its description in dynamic equilibrium:

  Equal Rates ↔️ Forward and reverse reactions proceed at the same rate

  Constant Concentrations ↔️ Reactants and products remain stable over time
• In static equilibrium, reactions have completely stopped