A reversible reaction is one where the products of the reaction can themselves react to produce the origional reactants. In other words, the reactinos can go both ways.
Reversible reactions will reach equilibrium
1) If a reversible reaction takes place in a closed system then a state of equilibrium will always be reached.
2) Equilibrium means that the amounts of the reactants and products will reach a certain balance and stay there. ( A closed system just means that none of the reactants or products can escape.)
3) The reactions are still taking place in both directions, but the overall effect is nil because the forward and reverse reactions cancel each other out. The reactions are taking place at exactly the same rate in both directions.
Changing the temperature…