Answer to Question #313106 in General Chemistry for ken

Question

1. What is the relationship between the Ksp expressions for a chemical reaction and its reverse chemical reaction?

Answer 1

For an equilibrium reaction

$aA+bB \longleftrightarrow cC+dD$

$K_{sp}= \frac{[p_c]^c[p_D]^d}{[p_A]^a[p_B]^b}$

for the reverse reaction we can write value of KSp as follows

$K^{'}_{sp}= \frac{[p_A]^a[p_B]^b}{[p_C]^c[p_D]^d}$

$K_{sp}= \frac{1}{K^{'}_{sp}}$