In a reversible reaction. is it true that two substances are in equilibrium if the concentration of each increases by the same amount but the equilibrium constant remains unaffected?

1 Answer
Dec 20, 2016

Answer:

Yes, it is true that the equilibrium constant remains unaffected when you change any of the concentrations.

Explanation:

The equilibrium constant is a constant at a given temperature.

Consider the equilibrium

#"A ⇌ 2B"#

#K_"eq" = "[B]"^2/"[A]"#

If you change any of the concentrations, #K_"eq"# does not change.

Instead, the system adjusts itself so that the new values of of #"[A]"# and #"[B]"# create a new position of equilibrium that satisfies the value of the #K_"eq"# expression.