(b) The summation of all the torques due to all the forces acting on the body must be equal to zero. (c) The body must be at rest at all times. The examples of static equilibrium are: (i) a book resting on a table. (ii) a car parked on a road.
The first equilibrium condition for the static equilibrium of a rigid body expresses translational equilibrium: ∑k→Fk=→0. The first equilibrium condition, Equation 12.2. 2, is the equilibrium condition for forces, which we encountered when studying applications of Newton’s laws.
Static equilibrium refers to a condition where the reaction occurring in a system is completely halted and there exists no movement between the reactants and the products corresponding to the chemical reaction.
Dynamic equilibrium is the steady state of a reversible reaction where the rate of the forward reaction is the same as the reaction rate in the backward direction. Static equilibrium, also known as mechanical equilibrium, means the reaction has stopped. In other words, the system is at rest.
So static equilibrium means the resultant force is zero and the object is not moving. Examples are: an object (e.g book) lying still on the surface (e.g table). no resultant moment about a pivot, so clockwise moment equals anticlockwise moment and there is no resultant force and no motion either.
Static-equilibrium definition
(physics) Any system in which the sum of the forces, and torque, on each particle of the system is zero; mechanical equilibrium.
Definition. Dynamic equilibrium is an equilibrium where reactants are converted to products and products are converted to reactants at an equal and constant rate. Static equilibrium is an equilibrium that occurs when all particles in the reaction are at rest, and there is no motion between reactants and products.
Static equilibrium is an important concept in the design of countless rigid structures, from the floor system of a house to an enormous suspension bridge, because these structures must maintain static equilibrium under all expected loading conditions.
Static equilibrium is the balance of the body during its rest or stationary position.
Chemical kinetics – the study of the rates of chemical processes. Equilibrium – the condition of a system in which competing influences. are balanced.
In chemistry, a dynamic equilibrium exists once a reversible reaction occurs. Substances transition between the reactants and products at equal rates, meaning there is no net change. Reactants and products are formed at such a rate that the concentration of neither changes.
