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

Problem 14.32

If the equilibrium concentrations found in the reaction A(g) + 2 B(g) 2C(g) are [A] = 0.025 M, [B] = 0.15 M, and [C] = 0.55 M, calculate the value of Kc.






Answer:

The mass action expression for the reaction is . The equilibrium concentrations of each component is given, so can be directly put into the mass action expression to give .