Dynamic Equilibrium Quiz

What is dynamic equilibrium in a chemical system?

• A state where the reverse reaction is faster than the forward reaction

• A state where the rate of the forward reaction is the same as the rate of the reverse reaction

• A state where there is no reaction occurring

• A state where the forward reaction is faster than the reverse reaction

What are the conditions required for a chemical system to be at equilibrium?

• It must be a reversible process and taking place in a closed system

• It must be a reversible process and taking place in an open system

• It must be an irreversible process and taking place in a closed system

• It must be an irreversible process and taking place in an open system

What happens to a reaction at equilibrium if the lid on top of the container is opened?

• The reaction stops completely

• The reaction accelerates

• The reaction reverses

• The reaction continues at the same rate

What is an example of a phase change reaching equilibrium?

• Sublimation of dry ice

• Evaporation of liquid bromine

• Boiling of water

• Melting of ice

What happens to the concentrations of reactants and products in a reaction at equilibrium over time?

• They increase continuously

• They decrease continuously

• They remain constant

• They fluctuate randomly

What is the key characteristic of a dynamic equilibrium in a chemical system?

• The forward reaction is faster than the reverse reaction

• There is no observable change in the system

• The system is in a state of chaos

• The reverse reaction is faster than the forward reaction

What is the main difference between a closed system and an open system?

• In an open system, there is no exchange of energy

• In an open system, there is no exchange of matter

• In a closed system, there is no exchange of matter

• In a closed system, there is no exchange of energy

What is the reaction of hydrogen and iodine to produce hydrogen iodide an example of?

• A reversible reaction

• An irreversible reaction

• A phase change

• A chemical equilibrium