In which of the following reaction can equilibrium be attaineda)Revers...
Reversible Reaction
The common observation for any reactions when they are reacted in closed containers would not go to completion, for some given conditions like temperature and pressure.
For all those cases, only the reactants are found to be present in the intial stages, but with the progress of reaction, the reactants concentration decreases and to that of the products increases. A stage is finally reached where there is no more change of reactants and products concentration is observed. The state where the reactants and products concentrations do not show any visible change within a given period of time is better known as the state of chemical equilibrium.
The reactant amount that remains unused depends upon the experimental conditions like concentration of components, temperature of the system, pressure of the system and the reaction nature.
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In which of the following reaction can equilibrium be attaineda)Revers...
Equilibrium in Reversible Reaction:
Equilibrium is the state of a reaction in which the rates of forward and backward reactions become equal. In a reversible reaction, the reaction can proceed in both forward and backward directions. The reactants react to form the products, and the products react to form the reactants. Therefore, it is possible to attain equilibrium in a reversible reaction.
Example of Reversible Reaction:
The reaction N2(g) + 3H2(g) ⇌ 2NH3(g) is an example of a reversible reaction. In this reaction, nitrogen and hydrogen react in the forward direction to form ammonia, and ammonia reacts in the backward direction to form nitrogen and hydrogen.
Factors Affecting Equilibrium:
The equilibrium of a reversible reaction can be affected by the following factors:
1. Concentration: The concentration of the reactants and products affects the position of equilibrium. If the concentration of reactants is high, the equilibrium will shift towards the products, and if the concentration of products is high, the equilibrium will shift towards the reactants.
2. Temperature: The temperature affects the equilibrium constant of the reaction. If the temperature is increased, the equilibrium constant of an exothermic reaction decreases, and the equilibrium constant of an endothermic reaction increases.
3. Pressure: The pressure affects the equilibrium of a reaction involving gases. If the pressure is increased, the equilibrium will shift towards the side with fewer moles of gas.
Conclusion:
Therefore, it can be concluded that equilibrium can be attained only in a reversible reaction. In a reversible reaction, the reaction can proceed in both forward and backward directions, and the rates of forward and backward reactions become equal at equilibrium. The position of equilibrium can be affected by the concentration, temperature, and pressure of the reactants and products.
In which of the following reaction can equilibrium be attaineda)Revers...
This is becuz a reversible process proceeds infinitely slowly by a series of equilibrium states such that a system and the surroundings are always in near equilibrium with each other
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