Consider the following equilibrium: H2O(g) + CO(g) H2(g) + CO2(g) A closed container is initially filled with H2O and CO. Which of the following correctly describes the reaction as it proceeds towards equilibrium? A.The [CO] and [CO2] both increase. B.The [CO] decreases and [CO2] increases. C.The [CO] increases and [CO2] decreases. D.The [CO] and [CO2] both decrease.
The answer is b. The H2O and CO have to decrease in order to produce the CO2 and H2