[Santiago_1989]

Hi everyone!

When writing the equilibrium constant expression for a reaction, we do not include pure solids and pure liquids. Does it apply to the homogenous equilibria as well? What if we have this reaction

A(l) + B(l) --> C(l) + D(l), in this reaction, both the reactants and products are in a pure liquid state. What will be the Kc expression for this reaction?

[Hunter2]

Assume all liquids soluble each other then you have mixture of all 4 in the total volume.
c(A) = V(A)/V (tot), c(B) = V(B)/V (tot), c(C) = V(C)/V (tot), c(D) = V(D)/V (tot),

K can be expressed then.

[Borek]

A(l) + B(l) --> C(l) + D(l), in this reaction, both the reactants and products are in a pure liquid state

Assuming they are all immiscible and insoluble in each other, which would be quite something.