Are the rates of precipitation and dilution equal in solubility equilibria?

Answer 1

Surely they must be...........

An equilibrium of solubility is determined by the reaction.

#MX(aq)rightleftharpoonsMX(s)#....

And #[M^+][X^-]=K_"eq"#, and given this equality the rate forward of #"deposition"# is equal to the rate backwards of #"dissolution"#.

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Answer 2

Serenity Allen

No, the rates of precipitation and dilution are not equal in solubility equilibria. When a solution becomes saturated and precipitation occurs, the rate of precipitation exceeds the rate of dilution. This leads to the establishment of equilibrium between the dissolved solute and the precipitate.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.