Question

Write the equilibrium law for the following reaction:
2 H2(g) + O2(g) <=====> 2 H2O(g)
NH3(aq) + H2O(l) <==== NH4 (aq) + OH(aq)

Answer 1

For the reaction 2 H2(g) + O2(g) <=> 2 H2O(g), the equilibrium law can be written as follows:

Kc = [H2O]^2 / [H2]^2 [O2]

For the reaction NH3(aq) + H2O(l) <=> NH4(aq) + OH(aq), the equilibrium law can be written as follows:

Kc = [NH4][OH] / [NH3][H2O]