First, we define an equilibrium as a state of balance. A static equilibrium is when there are no forces acting on a system, or more technically, when the vector sum of the forces is zero. A dynamic equilibrium is when there are continuous forces that are balanced, and the system resists outside change.
A reaction at dynamic equilibrium<span> can be reversible, whereas a reaction at </span>static equilibrium<span> is irreversible. A reversible reaction is a reaction that can proceed in the direction of products to reactants. ... It is at </span>static equilibrium<span> if the reaction has occurred and the forward and reaction rates are both equal to 0. hope this helps!</span>