Question

A reversible chemical reaction having two reactants in equilibrium. If the concentrations of the reactants are doubled, then the equilibrium constant will

Answer 1

No change because Equation. constant depends only on change in temperature

Answer 2

In the given case, the equilibrium constant will be the same.

• The principle used in this case is that the equilibrium constant is independent of the following factors:

1. Pressure
2. Volume
3. Concentration of reactants
4. Concentration of products
5. Catalyst.

• It means that though the above-mentioned factors are altered or changed, it will not have any effect on the equilibrium constant of the reaction.
• Accordingly in case of reaction which is reversible, if the concentration of reactants is doubled, the equilibrium constant will remain the same.

Learn more about equilibrium constant

At 473 K, equilibrium constant K_{c} for decomposition of phosphorus pentachloride, PCl₅ is 8.3 x 10⁻³. If decomposition is depicted as, PCl₅ (g) ⇆ PCl₃ (g) + Cl₂ (g); ΔHϴ 124.0 kJ mol⁻¹ . what would be the effect on K_{c} if (i) more PCl₅ is added(ii) pressure is increased(iii) the temperature is increased?

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