Chapter 15, Problem 15.77SP

Interpretation Introduction

Interpretation:

The equilibrium reaction with appreciable equilibrium concentrations of reactants as well as products needs to be determined.

Concept introduction:

Following criteria are considered for equilibrium mixtures.

If $K_c>{10}^3$, the products predominate over reactants. Since K_c is very large, the reaction proceeds nearly to completion.

If $K_c<{10}^3$, the reactants predominate over products. Since K_c is very small, the reaction may not proceed to completion or may not proceed at all.

If K_c is between ${10}^{-3}-{10}^3$, appreciable concentration of both reactants and products are present in the equilibrium mixture.