Answer
Please see the work below.
Work Step by Step
We can find the thermodynamic equilibrium constant as
a.$K=K_p=\frac{PCO_2PH_2}{PCOPH_2O}$\
b. $K=K_{sp}=[Mg^{+2}][OH^{-}]^2$
c. $K=[Li^{+}]^2[OH^-]^2PH_2$
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