Chapter 14, Problem 14.14QP

The reaction $3\text{A}(g)+\text{ B}(s)\stackrel{}{\rightleftharpoons }2\text{C}(aq)+\text{D}(aq)$ occurs at 25°C in a flask, which has 1.87 L available for gas. After the reaction attains equilibrium, the amounts (mol) or concentrations (M) of substances are as follows:

1. 2.48 mol A
2. 2.41 mol B
3. 1.13 M C
4. 2.27 M D

What is the equilibrium constant K_c for this reaction at 25°C?

1. a 1.24
2. b 0.190
3. c 0.516
4. d 1.15
5. e 0.939