ICE Problems

20.23 Determine the value of the equilibrium constant for the reaction

A + B ↔ 2C

if 1.0 mol of A, 1.4 mol of B, and 0.50 mol of C are placed in a 1.0 L vessel and allowed to come to equilibrium. The final concentration of C is 0.75 mol/L.

rxn
I
C
E

 

 

 

20.24 At a certain temperature 1.00 mol of PCl3(g) and 2.00 mol of Cl2(g) were placed in a 3.00 L container. When equilibrium was established, only 0.700 mol of PCl3 remained. Calculate the value of the equilibrium constant for the formation of PCl5 (g) from these reactants.

rxn
I
C
E

 

 

 

20.26 For the reaction of XO with O2 to form XO2, the equilibrium constant at 398 K is 1.0 X 10-4 L/mol. If 1.0 mol of XO and 2.0 mol of O2 are placed in a 1.0 L vessel and allowed to come to equilibrium, what will be the equilibrium concentration of each of the species?

rxn
I
C
E