Once the equilibrium is reached under given condition:a)Cone, remains the same in spite of the change in temperatureb)Cone, of all the substances presents do not changec)Cone, of reactants remairfs samed)Cone, of products remains sameCorrect answer is option 'B'. Can you explain this answer?

Question

Answer

In a chemical reaction, chemical equilibrium is the state in which the forward reaction rate and the reverse reaction rate are equal. The result of this equilibrium is that the concentrations of the reactants and the products do not change. However, just because concentrations aren’t changing does not mean that all chemical reaction has ceased. Just the opposite is true; chemical equilibrium is a dynamic state in which reactants are being converted into products at all times, but at the exact rate that products are being converted back into reactants. The result of such a situation is analogous to a bridge between two cities, where the rate of cars going over the bridge in each direction is exactly equal. The result is that the net number of cars on either side of the bridge does not change.

Answer

The codition of equilibrium is that the rate of forward and backward reaction is same but the con.of rectant or product may or may not chance. But in ncert it is given that con. not chance .you should follow ncert. If still you find diffulcity ask me i can explain it futher

Answer

Explanation:

When the equilibrium is reached under given conditions, the cone of all the substances present does not change. This means that the concentrations or amounts of the reactants and products in the equilibrium mixture remain constant.

Reasoning:

In a chemical equilibrium, the forward and reverse reactions occur at the same rate, resulting in a dynamic balance between the reactants and products. The equilibrium position, also known as the cone, is determined by the relative concentrations of the reactants and products at equilibrium.

Understanding the given options:

a) Cone remains the same in spite of the change in temperature: This statement is not always true. Changes in temperature can shift the equilibrium position by affecting the rates of the forward and reverse reactions. Therefore, the cone of the substances may change.

b) Cone of all the substances present do not change: This statement is correct. The equilibrium position is determined by the relative concentrations of the reactants and products, and it remains constant once equilibrium is reached. This means that the cone of all the substances in the equilibrium mixture does not change.

c) Cone of reactants remains the same: This statement is not always true. Changes in the concentrations of the reactants can shift the equilibrium position, resulting in a change in the cone of the reactants.

d) Cone of products remains the same: This statement is not always true. Changes in the concentrations of the products can shift the equilibrium position, resulting in a change in the cone of the products.

Conclusion:

The correct answer is option 'B' - Cone of all the substances present do not change. In a chemical equilibrium, the cone of all the substances in the equilibrium mixture remains constant once equilibrium is reached. This is because the rates of the forward and reverse reactions are equal, and there is no net change in the concentrations of the reactants and products.

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