We’re asked to determine the equilibrium constant, Keq for the given reaction:
2H2O(g) ⇌ 2H2 (g) + O2 (g)
Recall that the equilibrium constant is the ratio of the products and reactants.
We use Kp when dealing with pressure and Kc when dealing with concentration:
Note that solid and liquid compounds are ignored in the equilibrium expression.
For the reaction shown here:
2H2O(g) ⇌ 2H2(g)+O2(g)
the equilibrium concentrations were found to be:
What is the equilibrium constant for this reaction?
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