Which of the following will not affect the value of equilibrium consta (2024)

FAQs

Which of the following will not affect the value of equilibrium consta? ›

Changing pressure does not affect the equilibrium constant as we increase the pressure the reaction moves in such a direction to nullify that effect. It can be achieved by the reaction in that direction where fewer molecules are present.

Ans : The characteristics of the equilibrium constant are that it is not affected by a change in concentration, pressure, or even after the addition of a catalyst.

Equilibrium constants are not changed if you change the pressure of the system. The only thing that changes an equilibrium constant is a change of temperature.

The concentrations of pure solids and pure liquids do not change during the course of the reaction. As the concentration of solids does not undergo any change, these concentrations are not included in the expression for the equilibrium constant. So, solids do not affect equilibrium.

In the equilibrium reaction, the number of moles of reactants and products is same. Hence, the equilibrium will not be affected by the change in pressure. Also this equilibrium will not be affected by the addition of catalyst as catalyst only accelerates the rate at which equilibrium is achieved.

The only thing that affects equilibrium constant is the change in temperature. The resultant effect depends upon whether the given reaction is exothermic or endothermic.

Only three types of stresses can change the composition of an equilibrium mixture: (1) a change in the concentrations (or partial pressures) of the components by adding or removing reactants or products, (2) a change in the total pressure or volume, and (3) a change in the temperature of the system.

A change in pressure or change in concentration does not change K because the equilibrium will stay the same. Although, a reaction may be farther away from equilibrium, the actual K constant will never change unless the temperature is changed.

Because the concentrations are measured at equilibrium, the equilibrium constant remains the same for a given reaction independent of initial concentrations.

Catalysts do not affect the position of an equilibrium; they help reactions achieve equilibrium faster.