Exactly one mol/L of each of the four gases involved in the following reaction is placed in a reactor at 200°C and allowed to reach equilibrium. What is the equilibrium concentration of H2O?
Kc = 2.38 @ 200°C.
CO(g) + H2O(g) CO2(g) + H2(g)
a. 1.21 M
b. 0.213 M
c. 0.787 M
d. 2.38 M
e. 1.0 M
Answer: c. 0.787 M