Question

Give characteristics of equilibrium state

Answer 1

Answer:

The state of chemical equilibrium is characterized by constancy of certain properties such as concentration, density, pressure or color. However, the state of equilibrium is observed only as long as the reaction conditions such as temperature and pressure are kept constant.

Answer 2

The chemical equilibrium state describes concentrations of reactants and products in a reaction taking place in a closed system,which no longer change with time. In other words, the rate of the forward reaction equals the rate of the reverse reaction, such that the concentrations of reactants and products remain fairly stable, in a chemical reaction. Equilibrium is denoted in a chemical equation by the ⇌ symbol.

Introduction
1. Equilibrium may only be obtained in a closed system.

2. The rate of the forward reaction is equal to the rate of the reverse reaction.
3. Catalysts have no effect on the equilibrium point. However, changes in the concentrations of either the products or reactants, temperature, volume, or pressure can offset the equilibrium point. This point illustrated in Le Chatelier's Principle

4. The consistency of observable or physical properties such as concentration, color, pressure, and density can indicate a reaction has reached equilibrium.

Conditions for Equilibrium
The equilibrium state can only be reached if the chemical reaction takes place in a closed system. Otherwise, some of the products may escape, leading to the absence of a reverse reaction. (Note that in the diagrams under "Characteristics of Chemical Equilibrium," all reactions are in closed systems.)