EQUILIBRIUM Flashcards
What is a reversible reaction?How is it represented?
A reversible reaction is a chemical reaction in which products react to form the reactants and vice versa.
It is represented using a double arrow
What results in a reversible reaction?
Reversible reaction occurs when there are two opposing reactions, the formation of products and the reformation of reactants.
When is a reversible reaction said to be in an equilibrium?
A reversible reaction is said to be in an equilibrium when the rate of the forward reaction is equal to rate of reverse reaction.
What is a dynamic equilibrium?
Dynamic equilibrium is an equilibrium situation in which microscopic changes occur but macroscopic changes don’t occur.
Define macroscopic changes?
Macroscopic changes are changes that are visible or large scale. Like colour intensity, concentration, pH, temperature, and pressure.
What is microscopic changes?
Macroscopic changes are changes that occur at the molecular/atomic level.
When will a reverse reaction not happen?
When the reactants form the product but the products are able to escape from the reaction vessel. Then the products will not be available for the reverse reaction. Hence, no reverse reaction.
What is a closed system?
A closed system is a system n which nothing can enter or leave.
What happens if an equilibrium system is disrupted by opening it and then closing it but some chemicals escape?
Even then, the remaining chemicals will reestablish the equilibrium. The equilibrium state would remain noted that the system gets closed again.
What is the relationship of temperature and the equilibrium?
Temperature effects the equilibrium.
What happens when you change the temperature of everything?
A new equilibrium is maintained at that temperature.
Should the products be in excess or the reactants or both?
It doesn’t matter. Equilibrium is the only thing that matters.
When a system is at equilibrium, what doesnt occur?
Macroscopic changes don’t occur when the system is at equilibrium.
