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J. W. Hill, R. H. Petrucci, T. W. McCreary, & S. S. Perry General Chemistry, 4th edition.

Review Question 14.12.

Write an equilibrium constant expressions, Kc, for each of the following reversible reactions.

(a) Carbon monoxide gas reduces nitrogen monoxide gas to gaseous nitrogen; carbon dioxide gas is the other product.

(b) Oxygen gas oxidizes gaseous ammonia to gaseous nitrogen monoxide; water vapor is the other product.

(c) Solid sodium hydrogen carbonate decomposes to form solid sodium carbonate, water vapor, and carbon dioxide gas.




Answer:

Write the balanced chemical reaction and then use the definition of mass action to find the equilibrium constant expression.

(a) 2 CO(g) + 2 NO(g)N2(g) + 2 CO2(g)

(b) 5 O2(g) + 4 NH3(g)4 NO(g) + 6 H2O(g)



(c) 2 NaHCO3(s)Na2CO3(s) + H2O(g) + CO2(g)